1 00:00:00,834 --> 00:00:02,567 [Russ] PanAm defined air travel. 2 00:00:02,567 --> 00:00:04,800 And this accident changed aviation forever. 3 00:00:04,800 --> 00:00:07,934 And yet it has been almost completely forgotten. 4 00:00:09,400 --> 00:00:10,867 [Russ] Shortly after takeoff, 5 00:00:10,867 --> 00:00:13,667 he hears what he thinks are explosions. 6 00:00:13,667 --> 00:00:14,767 Nobody knows what to do. 7 00:00:14,767 --> 00:00:17,433 So now I presume it's chaos. 8 00:00:18,367 --> 00:00:20,100 We also find information that can lead us 9 00:00:20,100 --> 00:00:21,200 to where this happened. 10 00:00:21,200 --> 00:00:23,767 We've actually discovered here in the archive a map 11 00:00:23,767 --> 00:00:25,266 showing the route of the plane, 12 00:00:25,266 --> 00:00:27,100 including where they think it went down. 13 00:00:27,100 --> 00:00:29,166 That indicates the crash location? 14 00:00:29,166 --> 00:00:30,533 Yes. 15 00:00:31,767 --> 00:00:33,700 So this aircraft is just sitting in the deep somewhere? 16 00:00:33,700 --> 00:00:34,667 [Russ] That's right. 17 00:00:34,667 --> 00:00:35,900 Just waiting to be found. 18 00:00:37,667 --> 00:00:38,667 [Josh] Show me this map. 19 00:00:38,667 --> 00:00:40,266 What did you find in the archives? 20 00:00:40,266 --> 00:00:41,200 [Russ] This is it. 21 00:00:41,200 --> 00:00:42,567 Or the technology we're bringing to bear, 22 00:00:42,567 --> 00:00:44,066 this is going to give us the best chance 23 00:00:44,066 --> 00:00:45,333 to find Clipper Endeavor. 24 00:00:46,467 --> 00:00:48,166 Conditions don't look great. 25 00:00:48,166 --> 00:00:49,433 Wind is picking up. 26 00:00:50,166 --> 00:00:51,667 Getting bad out. 27 00:00:51,667 --> 00:00:53,300 Can we sonar scan in this? 28 00:00:53,300 --> 00:00:54,800 [man] We're going to go for it. 29 00:00:54,800 --> 00:00:56,300 [Josh] There's something wrong out there. 30 00:00:56,300 --> 00:00:57,767 Ooh, what is that? 31 00:00:57,767 --> 00:00:59,266 [Russ] Let's see what it is. 32 00:00:59,266 --> 00:01:01,266 Heading down. 33 00:01:01,266 --> 00:01:03,000 Oh, oh, oh, something there. 34 00:01:03,000 --> 00:01:04,600 What is that? 35 00:01:17,700 --> 00:01:20,467 [woman] Please take a moment to find the exit nearest to you. 36 00:01:20,467 --> 00:01:22,900 In the unlikely event of a water landing, 37 00:01:22,900 --> 00:01:25,500 you'll find a flotation device beneath your seat. 38 00:01:25,500 --> 00:01:27,767 We hear this announcement on every flight. 39 00:01:27,767 --> 00:01:29,100 Many people tune it out. 40 00:01:29,100 --> 00:01:30,800 But the pre-flight safety briefing 41 00:01:30,800 --> 00:01:32,567 has saved countless lives. 42 00:01:32,567 --> 00:01:34,867 And yet, it wasn't always there. 43 00:01:34,867 --> 00:01:38,300 We can trace its origin back to one tragic accident. 44 00:01:40,600 --> 00:01:45,100 On April 11, 1952, PanAm Airways Clipper Endeavor 45 00:01:45,100 --> 00:01:47,367 departs from San Juan, Puerto Rico, 46 00:01:47,367 --> 00:01:51,800 a routine flight bound for New York with 69 souls aboard. 47 00:01:55,000 --> 00:01:57,066 And nine terrifying minutes later, 48 00:01:57,066 --> 00:01:59,600 the plane crashes into the Atlantic. 49 00:02:05,166 --> 00:02:08,867 Miraculously, everyone on board survives the impact. 50 00:02:08,867 --> 00:02:12,367 And that could and should be the end of the story. 51 00:02:12,367 --> 00:02:16,100 But the passengers haven't received a safety briefing. 52 00:02:16,100 --> 00:02:17,867 And many panic. 53 00:02:17,867 --> 00:02:20,800 In the chaos, 52 people drown. 54 00:02:22,767 --> 00:02:25,967 This disaster changed aviation forever. 55 00:02:25,967 --> 00:02:28,266 Every time you fly, you are safer 56 00:02:28,266 --> 00:02:30,200 because of what happened to this plane 57 00:02:30,200 --> 00:02:33,000 and her passengers 70 years ago. 58 00:02:33,000 --> 00:02:36,266 Yet despite the small area in which it could have crashed, 59 00:02:36,266 --> 00:02:38,800 Clipper Endeavor has never been found. 60 00:02:39,500 --> 00:02:42,266 A phantom lost in incredibly deep water 61 00:02:42,266 --> 00:02:45,066 thousands of feet beneath the waves. 62 00:02:45,066 --> 00:02:47,300 But all that may be about to change. 63 00:02:47,300 --> 00:02:50,967 A group of aircraft hunters known as Air Sea Heritage 64 00:02:50,967 --> 00:02:53,567 has just discovered long-lost documents 65 00:02:53,567 --> 00:02:56,000 and forgotten eyewitness accounts. 66 00:02:56,000 --> 00:02:58,200 Pinpointing the location of the plane 67 00:02:58,200 --> 00:03:00,367 and with a state-of-the-art research vessel 68 00:03:00,367 --> 00:03:02,367 armed with high-resolution sonar 69 00:03:02,367 --> 00:03:04,367 and a remotely operated vehicle, 70 00:03:04,367 --> 00:03:08,000 the team is about to launch a mission to scour the seabed 71 00:03:08,000 --> 00:03:09,600 off the coast of Puerto Rico. 72 00:03:10,867 --> 00:03:13,600 So ladies and gentlemen, please fasten your seatbelts 73 00:03:13,600 --> 00:03:15,867 and place your seatbacks and tray tables 74 00:03:15,867 --> 00:03:18,000 in their full upright position. 75 00:03:18,000 --> 00:03:20,767 We'll be arriving shortly in San Juan in search 76 00:03:20,767 --> 00:03:24,734 of a legendary lost aircraft, the Clipper Endeavor. 77 00:03:27,066 --> 00:03:29,600 The past is all around us. 78 00:03:29,600 --> 00:03:31,433 Oh, this is crazy. 79 00:03:31,800 --> 00:03:33,567 A world of mystery... 80 00:03:33,567 --> 00:03:34,667 This is a plane. 81 00:03:34,667 --> 00:03:35,767 -[man] Yeah. -[laughs] 82 00:03:35,767 --> 00:03:37,200 ...danger... 83 00:03:37,200 --> 00:03:38,867 We are about to be underwater. 84 00:03:38,867 --> 00:03:39,800 Whoa! 85 00:03:40,867 --> 00:03:42,133 ...and adventure. 86 00:03:44,266 --> 00:03:46,233 It's just straight down! 87 00:03:47,367 --> 00:03:49,500 Ah! Ah! Ah! Ah! 88 00:03:50,467 --> 00:03:53,100 I travel to the far corners of the Earth 89 00:03:53,100 --> 00:03:55,567 to uncover where legends end. 90 00:03:55,567 --> 00:03:56,967 [screams, laughs] 91 00:03:56,967 --> 00:03:58,667 ...and history begins. 92 00:03:58,667 --> 00:03:59,533 Okay, let's punch in. 93 00:04:00,467 --> 00:04:01,767 I'm Josh Gates, 94 00:04:01,767 --> 00:04:05,800 and this is Expedition Unknown. 95 00:04:10,166 --> 00:04:12,800 Hola from sunny San Juan, Puerto Rico, 96 00:04:12,800 --> 00:04:17,166 where my search for the lost Clipper Endeavor is officially on. 97 00:04:17,166 --> 00:04:20,967 Spanish for "rich port," Puerto Rico is exactly that. 98 00:04:20,967 --> 00:04:25,300 A swashbuckling stunner and a treasure trove of history. 99 00:04:25,867 --> 00:04:27,367 Nope, it's still not a state 100 00:04:27,367 --> 00:04:28,900 and still not sure it wants to be. 101 00:04:28,900 --> 00:04:30,867 But this is the only American territory 102 00:04:30,867 --> 00:04:33,867 that Christopher Columbus ever actually visited. 103 00:04:33,867 --> 00:04:36,600 The pastel painted streets of old San Juan 104 00:04:36,600 --> 00:04:39,800 are bursting with color, a healthy dose of humidity, 105 00:04:39,800 --> 00:04:41,767 and Caribbean flavor. 106 00:04:41,767 --> 00:04:43,667 And keeping guard over the city 107 00:04:43,667 --> 00:04:47,867 is a 500-year-old Spanish fortress at Morro Bay. 108 00:04:47,867 --> 00:04:50,400 Back in the 1950s, San Juan was in the midst 109 00:04:50,400 --> 00:04:52,400 of one of its many transformations. 110 00:04:52,400 --> 00:04:55,600 As the economy shifted from agriculture to industry, 111 00:04:55,600 --> 00:04:57,266 hundreds of thousands of Puerto Ricans 112 00:04:57,266 --> 00:04:59,166 left seeking higher wages. 113 00:04:59,166 --> 00:05:00,967 Now many of them landed in New York. 114 00:05:00,967 --> 00:05:03,300 And for more on that, see West Side Story. 115 00:05:03,300 --> 00:05:04,700 [dramatic music playing] 116 00:05:06,467 --> 00:05:09,467 Sorry, anyway, in this rapidly modernizing world, 117 00:05:09,467 --> 00:05:11,300 you've got Puerto Ricans flying north, 118 00:05:11,300 --> 00:05:13,166 and you've got jet-setters on the mainland 119 00:05:13,166 --> 00:05:15,767 flying south to this tropical paradise. 120 00:05:15,767 --> 00:05:20,300 Travel and tourism boomed, and one airline led the way. 121 00:05:21,266 --> 00:05:22,300 PanAm. 122 00:05:22,300 --> 00:05:24,667 The airline that came to define the glamour 123 00:05:24,667 --> 00:05:28,567 and excitement of air travel was also an airline of firsts. 124 00:05:28,567 --> 00:05:30,567 The first US airline to operate 125 00:05:30,567 --> 00:05:33,567 an international flight in 1927. 126 00:05:33,567 --> 00:05:35,767 The first to fly a sitting president, 127 00:05:35,767 --> 00:05:38,467 and the first to fly around the world. 128 00:05:38,467 --> 00:05:41,567 And in the 1950s, PanAm developed economy-class 129 00:05:41,567 --> 00:05:44,667 passenger service to make flying more affordable. 130 00:05:44,667 --> 00:05:47,667 One Douglas DC-4, dubbed the Clipper Endeavor, 131 00:05:47,667 --> 00:05:49,000 was given the popular route 132 00:05:49,000 --> 00:05:51,367 between New York and Puerto Rico. 133 00:05:51,367 --> 00:05:54,467 On April 11, 1952, the company offered 134 00:05:54,467 --> 00:05:59,467 a special $64 Easter fare on Flight 526A 135 00:05:59,467 --> 00:06:01,800 for Puerto Ricans eager to spend the holiday 136 00:06:01,800 --> 00:06:03,967 with their family and friends in New York. 137 00:06:03,967 --> 00:06:06,300 Unfortunately, the flight never arrived. 138 00:06:06,300 --> 00:06:09,400 Nine minutes after Clipper Endeavor took off from San Juan, 139 00:06:09,400 --> 00:06:11,767 it soared overhead and then crashed 140 00:06:11,767 --> 00:06:14,233 somewhere out there in the Atlantic Ocean. 141 00:06:16,266 --> 00:06:19,567 For 72 years, she has remained in water so deep 142 00:06:19,567 --> 00:06:22,367 that no modern search has ever been mounted. 143 00:06:22,367 --> 00:06:24,667 Now, one team is leading the charge 144 00:06:24,667 --> 00:06:26,900 to find this legendary plane. 145 00:06:26,900 --> 00:06:29,500 Outside the National Library of Puerto Rico, 146 00:06:29,500 --> 00:06:32,967 I meet fellow Explorers Club member Russ Matthews. 147 00:06:32,967 --> 00:06:34,567 -Josh. Hey! -Hey! 148 00:06:34,567 --> 00:06:36,166 -How are you, man? -Good. Good to see ya. 149 00:06:36,166 --> 00:06:37,300 Great to see you, too. 150 00:06:37,300 --> 00:06:39,400 Russ is the president and co-founder 151 00:06:39,400 --> 00:06:41,467 of the Air Sea Heritage Foundation, 152 00:06:41,467 --> 00:06:44,867 dedicated to investigating and preserving historical wrecks 153 00:06:44,867 --> 00:06:48,400 related to aviation and maritime history. 154 00:06:48,400 --> 00:06:51,367 And that brings us to PanAm Clipper Endeavor. 155 00:06:51,367 --> 00:06:52,200 [Russ] That's right. 156 00:06:52,200 --> 00:06:53,533 What got you interested in this story? 157 00:06:53,533 --> 00:06:56,467 -Well, I was actually researching other incidents -Yeah. 158 00:06:56,467 --> 00:07:00,667 and came across this story that I'd actually never heard before. 159 00:07:00,667 --> 00:07:02,266 I had never heard of this either. 160 00:07:02,266 --> 00:07:03,967 Which is crazy. I mean, this is what we do. 161 00:07:03,967 --> 00:07:05,000 -Right -Yeah. 162 00:07:05,000 --> 00:07:07,266 [Russ] And, you know, the more I looked into it, 163 00:07:07,266 --> 00:07:09,567 the more and more compelling it became. 164 00:07:09,567 --> 00:07:12,000 This accident changed aviation forever. 165 00:07:12,000 --> 00:07:15,367 Right. And yet it has been almost completely forgotten. 166 00:07:15,367 --> 00:07:17,500 It has. We've been working on this for five years. 167 00:07:17,500 --> 00:07:18,867 Wow. Five years of research. 168 00:07:18,867 --> 00:07:19,967 -That's right. -Okay. 169 00:07:19,967 --> 00:07:23,000 Here, actually, in the archives here in Puerto Rico, 170 00:07:23,000 --> 00:07:24,767 there is a wealth of information. 171 00:07:24,767 --> 00:07:26,000 There is a whole paper trail. 172 00:07:26,000 --> 00:07:27,567 And I think within those documents 173 00:07:27,567 --> 00:07:29,367 are the keys to finding this plane. 174 00:07:29,367 --> 00:07:30,567 -Can I see it? -Yeah. Let's go. 175 00:07:30,567 --> 00:07:32,133 Come on. 176 00:07:32,667 --> 00:07:36,667 The archive contains over 90,000 cubic feet of documents, 177 00:07:36,667 --> 00:07:38,767 some dating back to the 18th century. 178 00:07:38,767 --> 00:07:40,367 All dedicated to preserving 179 00:07:40,367 --> 00:07:42,867 the territory's history and culture. 180 00:07:42,867 --> 00:07:44,967 So, Josh, this is everything they have on Clipper Endeavor. 181 00:07:44,967 --> 00:07:46,767 -Wow. -And you can see it's considerable. 182 00:07:46,767 --> 00:07:47,533 [Josh] Yeah. 183 00:07:49,367 --> 00:07:51,266 So take me through the archives. 184 00:07:51,266 --> 00:07:52,600 Take me through this accident. 185 00:07:52,600 --> 00:07:54,700 I think a good place to start is with the experience 186 00:07:54,700 --> 00:07:56,867 of the passengers who were on board. 187 00:07:56,867 --> 00:08:00,166 [Josh] These files from the initial investigation contain evidence from 188 00:08:00,166 --> 00:08:02,500 the Civil Aeronautics Board, the Coast Guard, 189 00:08:02,500 --> 00:08:07,900 and PanAm itself, spanning a five-month inquiry in 1952. 190 00:08:07,900 --> 00:08:11,266 They also contain the testimony of 17 survivors 191 00:08:11,266 --> 00:08:15,100 who paint a picture of what happened on that fateful day. 192 00:08:15,100 --> 00:08:18,133 So this is from a passenger named Juan Cruz Nieves. 193 00:08:19,100 --> 00:08:20,700 Juan is 14 years old. 194 00:08:20,700 --> 00:08:23,300 He's traveling for the first time by air with his friend. 195 00:08:24,300 --> 00:08:25,967 Shortly after takeoff, 196 00:08:25,967 --> 00:08:28,767 he hears what he thinks are explosions. 197 00:08:28,767 --> 00:08:30,900 [Josh] Right. It says, "The first I knew there was something wrong 198 00:08:30,900 --> 00:08:32,900 with the airplane was when I felt it shudder." 199 00:08:33,867 --> 00:08:37,100 At 12:13 p.m., two minutes after takeoff, 200 00:08:37,100 --> 00:08:39,800 the still ascending plane begins to shake. 201 00:08:41,266 --> 00:08:43,500 But nobody in the cabin knows why. 202 00:08:45,066 --> 00:08:47,700 So we have another passenger here, Nelda Rivera. 203 00:08:47,700 --> 00:08:49,000 "The plane doesn't seem to be able 204 00:08:49,000 --> 00:08:50,667 to gain sufficient altitude." 205 00:08:50,667 --> 00:08:53,266 So these passengers know that something's wrong, 206 00:08:53,266 --> 00:08:55,266 -but maybe not exactly what. -No. 207 00:08:55,266 --> 00:08:58,567 Nelda goes on to say, "One of the crew came through the door 208 00:08:58,567 --> 00:09:00,500 from the pilot's compartment and shouted something 209 00:09:00,500 --> 00:09:02,467 in English that I did not understand. 210 00:09:02,467 --> 00:09:04,367 And then sat down in his seat very quickly." 211 00:09:04,367 --> 00:09:06,367 Most of the people on the plane, again, are from Puerto Rico, 212 00:09:06,367 --> 00:09:08,367 and a lot of them don't speak English. 213 00:09:08,367 --> 00:09:10,667 So even with the little information that they're getting, 214 00:09:10,667 --> 00:09:12,100 they're not understanding. 215 00:09:12,100 --> 00:09:14,400 [Josh] The plane, just out over open ocean, 216 00:09:14,400 --> 00:09:17,000 is already turning back towards San Juan 217 00:09:17,000 --> 00:09:19,634 when another loud noise shakes the cabin. 218 00:09:20,667 --> 00:09:23,800 With minimal information and even less communication, 219 00:09:23,800 --> 00:09:27,166 the passengers are unprepared for the emergency landing 220 00:09:27,166 --> 00:09:29,300 that the pilots are about to attempt. 221 00:09:36,266 --> 00:09:38,767 This is from another passenger, Emiliano Cruz Arroyo. 222 00:09:38,767 --> 00:09:40,667 He says he was standing when the plane hit the water, 223 00:09:40,667 --> 00:09:43,066 "Was thrown against the seat in front of mine. 224 00:09:43,066 --> 00:09:44,100 And the next thing I remember 225 00:09:44,100 --> 00:09:46,266 is that blood was coming from my nose and mouth. 226 00:09:46,266 --> 00:09:47,066 Looked around for my friend, 227 00:09:47,066 --> 00:09:49,200 but I was not able to find him." 228 00:09:49,900 --> 00:09:51,867 So chaos when it hits the water. 229 00:09:51,867 --> 00:09:53,166 Yeah, confusion everywhere. 230 00:09:53,166 --> 00:09:55,367 [Josh] At 115 miles per hour, 231 00:09:55,367 --> 00:09:57,567 the plane has dived into the Atlantic. 232 00:09:57,567 --> 00:10:01,400 Miraculously, everyone on board has survived the landing. 233 00:10:01,400 --> 00:10:04,300 But the disaster has only just begun. 234 00:10:04,300 --> 00:10:08,200 The Clipper Endeavor is now rapidly sinking into the ocean. 235 00:10:09,200 --> 00:10:11,367 So does the plane break apart when it hits the water? 236 00:10:11,367 --> 00:10:12,700 Yeah, after the initial contact, 237 00:10:12,700 --> 00:10:14,266 the tail hits first and separates. 238 00:10:14,266 --> 00:10:16,000 The first officer didn't even know anything 239 00:10:16,000 --> 00:10:18,367 until he looked out the window and saw it floating away. 240 00:10:18,367 --> 00:10:20,667 -[Josh] Saw the tail floating away? -Yes. 241 00:10:20,667 --> 00:10:23,100 And the plane then sinks? How fast? 242 00:10:23,100 --> 00:10:25,166 Two, three minutes tops. 243 00:10:25,166 --> 00:10:26,467 -Two, three minutes? -Yes. 244 00:10:26,467 --> 00:10:28,166 -The entire plane's gone. -That's it. 245 00:10:28,166 --> 00:10:30,266 So now I presume it's chaos. 246 00:10:30,266 --> 00:10:32,166 Yes, nobody knows what to do. 247 00:10:32,166 --> 00:10:34,100 -Right. -They don't know where to find their life jackets. 248 00:10:34,100 --> 00:10:35,600 They don't know where the life rafts are. 249 00:10:35,600 --> 00:10:37,100 They don't know where the exits are. 250 00:10:37,100 --> 00:10:40,867 They're looking out there and realizing that, you know, 251 00:10:40,867 --> 00:10:42,567 not only are they in the middle of this, 252 00:10:42,567 --> 00:10:45,266 you know, roiling ocean, but it's... 253 00:10:45,266 --> 00:10:47,000 They know it's full of sharks. 254 00:10:48,567 --> 00:10:51,567 [Josh] Outside the plane, these tropical waters are teeming 255 00:10:51,567 --> 00:10:53,700 with 42 species of sharks, 256 00:10:53,700 --> 00:10:57,500 including known man-eaters like bulls and tigers. 257 00:10:57,500 --> 00:11:01,867 15 knot winds are also kicking up 12 foot tall waves. 258 00:11:01,867 --> 00:11:05,066 Some passengers are too scared to disembark. 259 00:11:05,066 --> 00:11:06,166 And those life jackets, 260 00:11:06,166 --> 00:11:07,767 they're tucked into the headrests 261 00:11:07,767 --> 00:11:09,500 of the seats where most passengers 262 00:11:09,500 --> 00:11:11,600 don't know to look for them. 263 00:11:14,467 --> 00:11:15,867 This passenger, Gloria, says, 264 00:11:15,867 --> 00:11:17,567 "The flight attendant opened the exit. 265 00:11:17,567 --> 00:11:20,300 People began going out without their life jackets. 266 00:11:20,300 --> 00:11:22,467 If there were instructions given about the life jackets, 267 00:11:22,467 --> 00:11:23,700 I did not hear them." 268 00:11:23,700 --> 00:11:25,767 I then grabbed my cousin by the arm and tried 269 00:11:25,767 --> 00:11:27,367 to get her to leave the plane, 270 00:11:27,367 --> 00:11:29,166 but she was hysterical and would not let go 271 00:11:29,166 --> 00:11:30,200 of the side of the exit, 272 00:11:30,200 --> 00:11:31,467 and I was not able to get her out." 273 00:11:31,467 --> 00:11:32,634 [Russ] No. 274 00:11:33,467 --> 00:11:35,867 [Josh] This is from, uh, Enrique Garcia. 275 00:11:35,867 --> 00:11:38,567 " I went to the emergency exit behind me and went through it 276 00:11:38,567 --> 00:11:40,567 with my baby, six months old. 277 00:11:40,567 --> 00:11:42,000 I stayed on the wing for a moment, 278 00:11:42,000 --> 00:11:44,200 but a big wave carried my baby away." 279 00:11:44,200 --> 00:11:45,400 Yeah. 280 00:11:45,400 --> 00:11:46,700 Ripped out of his arms. 281 00:11:46,700 --> 00:11:47,900 [Russ] Out of his arms. 282 00:11:48,567 --> 00:11:49,800 Come on. 283 00:11:52,200 --> 00:11:55,767 How quickly do rescuers get on the scene? 284 00:11:55,767 --> 00:11:58,700 The first aircraft is airborne within six minutes. 285 00:12:00,367 --> 00:12:03,767 [Josh] It doesn't take long for responders to spot the passengers, 286 00:12:03,767 --> 00:12:07,700 and rescue boats arrive on the scene within 90 minutes. 287 00:12:07,700 --> 00:12:09,667 The rescuers who responded to the scene 288 00:12:09,667 --> 00:12:12,100 could see sharks in the water. 289 00:12:12,100 --> 00:12:14,066 So the Coast Guard Cutter that was sent to the rescue, 290 00:12:14,066 --> 00:12:15,300 the Bramble, 291 00:12:15,300 --> 00:12:17,467 they had the crew break out rifles 292 00:12:17,467 --> 00:12:19,367 to fend off sharks. 293 00:12:19,367 --> 00:12:22,100 In one instance, the co-pilot 294 00:12:22,100 --> 00:12:24,467 of the first rescue plane to land 295 00:12:24,467 --> 00:12:28,567 looks and sees Juan and his friend struggling, 296 00:12:28,567 --> 00:12:30,667 and the co-pilot without even thinking about it 297 00:12:30,667 --> 00:12:32,100 dives in after them. 298 00:12:32,100 --> 00:12:35,166 And he talks about twice they were attacked by a shark, 299 00:12:35,166 --> 00:12:38,266 and he had to kick it as hard as he could to drive it away. 300 00:12:38,266 --> 00:12:39,266 Insane. 301 00:12:41,066 --> 00:12:43,467 The human tragedy radiating from these pages 302 00:12:43,467 --> 00:12:47,000 v overwhelming, and it didn't need to be this way. 303 00:12:47,000 --> 00:12:48,967 The pilot got the plane down. 304 00:12:48,967 --> 00:12:51,000 Life jackets were inches away 305 00:12:51,000 --> 00:12:53,667 from these terrified and confused passengers. 306 00:12:53,667 --> 00:12:56,967 But a lack of communication doomed their escape. 307 00:12:56,967 --> 00:12:58,700 Can we also find information that can lead us 308 00:12:58,700 --> 00:13:00,066 to where this happened? 309 00:13:00,066 --> 00:13:03,000 We can, and within these files is something 310 00:13:03,000 --> 00:13:05,500 that's going to show us where we think the plane is. 311 00:13:05,500 --> 00:13:06,333 What's that? 312 00:13:06,333 --> 00:13:09,200 A map showing the route of the plane, 313 00:13:09,200 --> 00:13:11,467 including where they think it went down. 314 00:13:11,467 --> 00:13:13,867 That indicates the crash location? 315 00:13:13,867 --> 00:13:14,767 Yes. 316 00:13:14,767 --> 00:13:15,767 Can we see that? 317 00:13:15,767 --> 00:13:17,266 Well, I can show it to you here, 318 00:13:17,266 --> 00:13:19,300 or we can go fly that path ourselves. 319 00:13:20,266 --> 00:13:21,100 Let's do it. 320 00:13:21,100 --> 00:13:22,133 [dramatic music playing] 321 00:13:30,000 --> 00:13:31,200 All right. 322 00:13:33,567 --> 00:13:34,467 Okay, you hear me? 323 00:13:34,467 --> 00:13:35,200 I gotcha. 324 00:13:35,200 --> 00:13:36,800 All right, let's rock and roll. 325 00:13:36,800 --> 00:13:38,100 Hey, let's do it. 326 00:13:45,967 --> 00:13:48,100 Josh, this is East La Grande Airport. 327 00:13:48,967 --> 00:13:50,767 We are taking off in the same direction, 328 00:13:50,767 --> 00:13:53,066 same runway as Clipper Endeavor. 329 00:13:53,066 --> 00:13:54,567 So we are in their shadow right now. 330 00:13:54,567 --> 00:13:56,667 We're following in their path. 331 00:13:56,667 --> 00:14:00,066 [Josh] Explorer Russ Matthews and I are flying in the doomed path 332 00:14:00,066 --> 00:14:02,000 of the PanAm Clipper Endeavor, 333 00:14:02,000 --> 00:14:05,000 which crashed 70 years ago off of Puerto Rico, 334 00:14:05,000 --> 00:14:06,867 drowning 52 passengers 335 00:14:06,867 --> 00:14:09,767 and changing air safety procedures forever. 336 00:14:09,767 --> 00:14:11,967 Now, a newly discovered map 337 00:14:11,967 --> 00:14:14,967 from the original Civil Aeronautics Board investigation 338 00:14:14,967 --> 00:14:17,900 may finally tell us where to find the wreck. 339 00:14:17,900 --> 00:14:20,667 Okay, so show me this map. 340 00:14:20,667 --> 00:14:22,166 What did you find in the archives? 341 00:14:22,166 --> 00:14:23,300 This is it. 342 00:14:23,300 --> 00:14:24,767 These are maps that were created 343 00:14:24,767 --> 00:14:26,867 by crash investigators after the accident. 344 00:14:26,867 --> 00:14:28,500 [Josh] Oh, my Lord. 345 00:14:28,500 --> 00:14:30,467 Yes, and they detailed, step by step, 346 00:14:30,467 --> 00:14:32,066 the sequence of events. 347 00:14:32,066 --> 00:14:35,100 [Josh] This map provides a moment by moment account 348 00:14:35,100 --> 00:14:37,567 of the plane's tragic nine-minute flight, 349 00:14:37,567 --> 00:14:41,266 with key events numbered and described in the legend. 350 00:14:41,266 --> 00:14:44,967 The document shows that the experience of the crew during the flight 351 00:14:44,967 --> 00:14:48,100 was far different from that of the passengers. 352 00:14:48,100 --> 00:14:50,600 [Russ] So if we look at this map here, they leave the airport. 353 00:14:50,600 --> 00:14:53,600 We follow this line, and then we see a number one on here. 354 00:14:53,600 --> 00:14:54,767 [Josh] Number one. 355 00:14:54,767 --> 00:14:57,767 This is when the number three engine started to run hot 356 00:14:57,767 --> 00:15:00,567 and the air pressure was failing. 357 00:15:00,567 --> 00:15:02,567 [Josh] In response to the dropping pressure, 358 00:15:02,567 --> 00:15:05,367 Captain John C. Byrne takes no chances. 359 00:15:05,367 --> 00:15:07,400 He shuts down the failing engine, 360 00:15:07,400 --> 00:15:10,367 leaving three more to keep the plane in the air. 361 00:15:10,367 --> 00:15:13,300 We heard in the passenger testimony that something happens 362 00:15:13,300 --> 00:15:15,367 outside the plane, a shudder, an explosion. 363 00:15:15,367 --> 00:15:17,100 When that number three engine shut down, 364 00:15:17,100 --> 00:15:18,567 that's probably the shudder that they felt. 365 00:15:18,567 --> 00:15:19,400 Right. 366 00:15:19,400 --> 00:15:21,000 Right. They could feel that this big, 367 00:15:21,000 --> 00:15:22,400 powerful engine's going offline. 368 00:15:22,400 --> 00:15:23,567 -Right. -Got it. 369 00:15:23,567 --> 00:15:25,166 And the next thing we see on this map, 370 00:15:25,166 --> 00:15:27,300 it looks like he's changing course. 371 00:15:27,300 --> 00:15:29,000 [Russ] He's already decided he's going to return 372 00:15:29,000 --> 00:15:30,934 to the airport that we just left from. 373 00:15:32,667 --> 00:15:34,867 [Josh] Losing an engine at low altitude is dangerous, 374 00:15:34,867 --> 00:15:37,000 but not necessarily fatal. 375 00:15:37,000 --> 00:15:39,767 The pilots abort the flight path to New York, though, 376 00:15:39,767 --> 00:15:41,066 and turn the plane around 377 00:15:41,066 --> 00:15:43,367 to head back to San Juan Airport. 378 00:15:43,367 --> 00:15:45,367 Okay, so Josh, right here, we're making the same turn 379 00:15:45,367 --> 00:15:46,533 that they made on this map. 380 00:15:46,533 --> 00:15:49,800 So this is not ideal, but he's got three good engines. 381 00:15:49,800 --> 00:15:51,400 He's turning back to the airport. 382 00:15:51,400 --> 00:15:53,467 Unfortunately, I see another marker on here, 383 00:15:53,467 --> 00:15:54,533 -[Russ] Yeah. -number two. 384 00:15:54,533 --> 00:15:56,567 [Russ] But now as he starts to come up on power 385 00:15:56,567 --> 00:15:58,266 and he's trying to gain altitude, 386 00:15:58,266 --> 00:16:00,166 he starts to lose the number four engine. 387 00:16:00,166 --> 00:16:01,300 -Oh, no. -Yeah. 388 00:16:01,300 --> 00:16:03,600 So now he's losing the other engine of the right wing. 389 00:16:03,600 --> 00:16:04,700 Exactly. 390 00:16:04,700 --> 00:16:06,767 [Josh] The number four engine has to be shut down 391 00:16:06,767 --> 00:16:08,500 along with the number three, 392 00:16:08,500 --> 00:16:11,600 rendering the entire right wing powerless. 393 00:16:11,600 --> 00:16:13,767 The pilots are now desperately trying 394 00:16:13,767 --> 00:16:15,600 to keep the plane aloft long enough 395 00:16:15,600 --> 00:16:17,800 to return to the airport. 396 00:16:19,967 --> 00:16:22,100 So he's trying to do anything he can to stay in the air. 397 00:16:22,100 --> 00:16:23,333 But he's trying to use those engines 398 00:16:23,333 --> 00:16:26,200 on the left wing to compensate for what he lost on the right. 399 00:16:26,200 --> 00:16:27,800 [Russ] Yes. It's not working. 400 00:16:27,800 --> 00:16:28,867 They're still losing altitude. 401 00:16:28,867 --> 00:16:31,000 Now Captain Byrne has to figure out what to do. 402 00:16:31,000 --> 00:16:33,367 It's starting to look likely that they're going to ditch. 403 00:16:33,367 --> 00:16:35,000 -They're going to land in the water. -[Josh] Right. 404 00:16:35,000 --> 00:16:37,166 The only option he has to prevent that 405 00:16:37,166 --> 00:16:38,900 is he's got to make this plane lighter. 406 00:16:38,900 --> 00:16:40,900 He's got to do anything he can to keep it in the air. 407 00:16:40,900 --> 00:16:43,500 It is the only option to do that quickly. 408 00:16:43,500 --> 00:16:46,000 [Josh] Number four on the list, fuel dumping. 409 00:16:47,500 --> 00:16:48,600 [Russ] But it's very dangerous. 410 00:16:48,600 --> 00:16:51,700 So he sends the second officer back to the cabin, 411 00:16:51,700 --> 00:16:54,066 make sure nobody's smoking, 412 00:16:54,066 --> 00:16:57,500 and to turn off electric power to the galley to the cabin. 413 00:16:57,500 --> 00:17:00,367 [Josh] This is the one announcement shouted in English 414 00:17:00,367 --> 00:17:03,667 that many of the passengers fail to understand. 415 00:17:03,667 --> 00:17:05,400 What are they worried about? Like a spark? 416 00:17:05,400 --> 00:17:07,000 They're worried about a spark. 417 00:17:07,000 --> 00:17:08,000 They're worried about an explosion. 418 00:17:08,000 --> 00:17:08,934 -Wow. -Yeah. 419 00:17:08,934 --> 00:17:11,166 But one of the unfortunate results of that 420 00:17:11,166 --> 00:17:13,100 is that it also turns off the public address system 421 00:17:13,100 --> 00:17:14,000 in the cabin. 422 00:17:14,000 --> 00:17:15,066 Oh, my word. 423 00:17:15,066 --> 00:17:16,567 So now they have no ability 424 00:17:16,567 --> 00:17:18,367 -to even communicate with the passenger. -Yeah, that's right. 425 00:17:18,367 --> 00:17:20,567 There's no announcement made because they don't have 426 00:17:20,567 --> 00:17:21,867 the ability to do this anymore. 427 00:17:21,867 --> 00:17:23,000 Got it. 428 00:17:23,567 --> 00:17:26,567 They've dumped 3,500 gallons of fuel 429 00:17:26,567 --> 00:17:29,166 but are still miles away from the airport. 430 00:17:29,166 --> 00:17:31,100 They're on a race against time now and they're losing. 431 00:17:31,100 --> 00:17:31,767 [Josh] Right. 432 00:17:31,767 --> 00:17:33,767 They're maybe 100 feet off. 433 00:17:33,767 --> 00:17:36,000 100 feet above the last. 434 00:17:36,000 --> 00:17:39,000 So this is like their Captain Sully 435 00:17:39,000 --> 00:17:40,800 -miracle in the Hudson moment. -Exactly. 436 00:17:40,800 --> 00:17:43,266 He's basically making the call in the instant, 437 00:17:43,266 --> 00:17:45,200 "I'm not going to risk going back over land. 438 00:17:45,200 --> 00:17:47,400 -I'm not going to make it. We're going in the water." -That's right. 439 00:17:47,400 --> 00:17:49,367 -We realize that this is inevitable. -Right. 440 00:17:49,367 --> 00:17:51,000 So at this point with the comm system off, 441 00:17:51,000 --> 00:17:53,767 all the second officer can do is return to the cabin, 442 00:17:53,767 --> 00:17:56,667 make a motion that they're about to ditch, take his seat. 443 00:17:56,667 --> 00:17:58,667 Most of the people near him didn't understand English, 444 00:17:58,667 --> 00:18:00,467 didn't understand what he was trying to tell them. 445 00:18:00,467 --> 00:18:04,166 We read the testimony of these passengers and all of this, 446 00:18:04,166 --> 00:18:06,000 this whole sequence of events, 447 00:18:06,000 --> 00:18:07,867 they don't know really any of this is happening. 448 00:18:07,867 --> 00:18:09,200 They just know something's wrong. 449 00:18:09,200 --> 00:18:10,967 All they know is that that water is getting closer. 450 00:18:10,967 --> 00:18:12,166 Right. 451 00:18:12,166 --> 00:18:14,667 Number eight and the very last thing in this ledger is... 452 00:18:14,667 --> 00:18:16,500 "Ditched." 453 00:18:16,500 --> 00:18:17,800 Plane hits the water. 454 00:18:20,800 --> 00:18:22,667 We've arrived at where the crew accounts 455 00:18:22,667 --> 00:18:25,533 and the passenger testimony violently meet. 456 00:18:32,200 --> 00:18:35,767 The Atlantic Ocean, where the plane lands on the water, 457 00:18:35,767 --> 00:18:37,767 snapping off the tail section. 458 00:18:37,767 --> 00:18:41,100 It could have been a miracle, but while some passengers 459 00:18:41,100 --> 00:18:44,967 make it to life rafts and rescue, most do not. 460 00:18:44,967 --> 00:18:48,100 The plane and tail sink beneath the 12 foot waves in minutes, 461 00:18:48,100 --> 00:18:50,800 leaving few traces behind. 462 00:18:53,367 --> 00:18:56,100 Okay, we should be over the position right now. 463 00:18:56,100 --> 00:18:58,066 So Josh, take a look out there. 464 00:18:58,066 --> 00:19:01,433 We are somewhere about where Clipper Endeavor went down. 465 00:19:02,667 --> 00:19:03,867 [Josh] This is it. 466 00:19:03,867 --> 00:19:07,767 The exact area where Russ believes the plane was lost. 467 00:19:07,767 --> 00:19:10,767 The discovery of these documents has already given us 468 00:19:10,767 --> 00:19:13,734 a major head start in locating the plane. 469 00:19:14,567 --> 00:19:16,567 Starting with this and with the other information 470 00:19:16,567 --> 00:19:18,266 we're finding in the archives. 471 00:19:18,266 --> 00:19:21,000 Plus the technology we're bringing to bear, 472 00:19:21,000 --> 00:19:24,667 this is going to give us the best chance to find Clipper Endeavor. 473 00:19:24,667 --> 00:19:26,867 [Josh] Having shadowed the plane's final flight, 474 00:19:26,867 --> 00:19:30,467 we land the chopper and prepare for a deep sea exploration 475 00:19:30,467 --> 00:19:32,800 unlike any I've ever assisted. 476 00:19:35,900 --> 00:19:38,200 Early the next morning at San Juan Harbor, 477 00:19:38,200 --> 00:19:40,467 we prepare to board the Blue Manta, 478 00:19:40,467 --> 00:19:43,867 a state of the art 77 foot long marine research 479 00:19:43,867 --> 00:19:46,600 and surveying vessel that will serve as the nerve center 480 00:19:46,600 --> 00:19:48,400 of our search. 481 00:19:48,400 --> 00:19:51,000 We board the ship to meet the rest of our crew, 482 00:19:51,000 --> 00:19:52,900 including an old friend of mine. 483 00:19:53,467 --> 00:19:54,967 Hey guys, remember Evan Kovacs? 484 00:19:54,967 --> 00:19:56,967 Oh my gosh, it's been forever. How are you? 485 00:19:56,967 --> 00:19:57,967 [Josh] Yeah. Very good, man. Very good. 486 00:19:57,967 --> 00:20:00,166 Last time I saw you, we were diving in Namibia. 487 00:20:00,166 --> 00:20:02,000 Namibia, yeah, exactly. 488 00:20:02,000 --> 00:20:04,767 [Josh] Evan Kovacs is an underwater imaging specialist 489 00:20:04,767 --> 00:20:06,500 who I got to know scanning the depths 490 00:20:06,500 --> 00:20:09,467 of Namibia's Lake Otjikoto. 491 00:20:09,467 --> 00:20:12,700 And since then, he and sonar expert Ben Roberts here 492 00:20:12,700 --> 00:20:15,567 have made some major upgrades to their kit. 493 00:20:15,567 --> 00:20:17,000 The beasts. 494 00:20:17,000 --> 00:20:18,900 This is our side scan sonar. 495 00:20:18,900 --> 00:20:20,900 Big difference is we're towing this behind the boat 496 00:20:20,900 --> 00:20:22,166 and most importantly we're getting it 497 00:20:22,166 --> 00:20:23,433 really close to the bottom. 498 00:20:23,433 --> 00:20:26,367 So we're going to have a much, much higher resolution image. 499 00:20:26,367 --> 00:20:28,967 [Josh] The fact is, because of the depth of the wreck, 500 00:20:28,967 --> 00:20:31,567 nobody has tried to find the Clipper Endeavor. 501 00:20:31,567 --> 00:20:34,500 But going deep won't be an issue for us. 502 00:20:34,500 --> 00:20:36,667 And so what depth is this rated to? 503 00:20:36,667 --> 00:20:37,834 6,500 feet. 504 00:20:37,834 --> 00:20:40,467 -This can go more than a mile underwater? -Over a mile. 505 00:20:40,467 --> 00:20:42,767 -Okay, so that should get the job done. -[Evan] Yeah. 506 00:20:42,767 --> 00:20:45,100 [Josh] The sonar will be hugging the ocean floor 507 00:20:45,100 --> 00:20:49,000 where the average pressure is 900 pounds per square inch. 508 00:20:49,000 --> 00:20:51,300 So once we get a target to investigate, 509 00:20:51,300 --> 00:20:52,867 no one will be diving it 510 00:20:52,867 --> 00:20:54,767 because no one can. 511 00:20:54,767 --> 00:20:58,467 Instead, we'll be sending this remotely operated vehicle. 512 00:20:58,467 --> 00:21:00,100 And on board here, we've got what? 513 00:21:00,100 --> 00:21:01,867 [Evan] Well, we've got the 4K, 514 00:21:01,867 --> 00:21:03,567 we've got the HD, we've got the sonar. 515 00:21:03,567 --> 00:21:06,467 -So this has its own onboard sonar system. -It does, yeah. 516 00:21:06,467 --> 00:21:09,000 [Josh] That means the ROV can not only chase a hit 517 00:21:09,000 --> 00:21:10,266 from our main sonar, 518 00:21:10,266 --> 00:21:13,100 it can initiate forward-facing sonar scans 519 00:21:13,100 --> 00:21:14,300 ahead of itself 520 00:21:14,300 --> 00:21:16,300 to home in on an exact target. 521 00:21:17,300 --> 00:21:19,800 Okay, so we've got our sonar, we've got our ROV. 522 00:21:19,800 --> 00:21:21,467 The big question is, 523 00:21:21,467 --> 00:21:23,567 where do we send them? Where do we look exactly? 524 00:21:23,567 --> 00:21:24,867 I've been working on that one for a while. 525 00:21:24,867 --> 00:21:26,000 -Yeah? -Yeah. 526 00:21:26,000 --> 00:21:27,166 You got a plan? 527 00:21:27,166 --> 00:21:28,734 -Let's go check it out. -[Josh] Come on. 528 00:21:30,066 --> 00:21:32,600 Inside, we pass by the array of computers 529 00:21:32,600 --> 00:21:35,867 and monitors we'll be using to direct our search. 530 00:21:35,867 --> 00:21:38,400 Also here is Russ's better half, 531 00:21:38,400 --> 00:21:40,634 research analyst Idee Montijo. 532 00:21:41,266 --> 00:21:42,900 -Idee. -Hey, Josh, how are you? 533 00:21:42,900 --> 00:21:43,700 Great to see you. 534 00:21:43,700 --> 00:21:46,567 And we've also got flag number 35. 535 00:21:46,567 --> 00:21:49,100 [Josh] This is an official Explorers Club expedition, 536 00:21:49,100 --> 00:21:51,200 so we're carrying an official flag. 537 00:21:51,200 --> 00:21:54,467 And old 35 here, has quite the illustrious resume, 538 00:21:54,467 --> 00:21:56,600 most recently as part of the expedition 539 00:21:56,600 --> 00:21:58,300 that found Ernest Shackleton's ship, 540 00:21:58,300 --> 00:22:01,000 the Endurance, on the bottom of the Weddell Sea. 541 00:22:01,967 --> 00:22:03,767 Okay, well, we got a lot to live up to here. 542 00:22:03,767 --> 00:22:05,266 Yeah, we do. We've got to add to that history. 543 00:22:05,266 --> 00:22:06,667 -[Josh] Yes. -And here's how we're gonna do it. 544 00:22:06,667 --> 00:22:08,700 All right, so we are here. 545 00:22:08,700 --> 00:22:09,967 -[Josh] Mm-hmm. -[Russ] And then 546 00:22:09,967 --> 00:22:12,066 this is the airfield 547 00:22:12,066 --> 00:22:13,367 where Clipper Endeavor took off from. 548 00:22:13,367 --> 00:22:15,166 -Got it. -So you remember the map we had 549 00:22:15,166 --> 00:22:16,700 -with us in the helicopter? -Yes. 550 00:22:16,700 --> 00:22:18,133 All right, so that's over here. 551 00:22:18,967 --> 00:22:21,400 We can see that's the estimated flight path. 552 00:22:21,400 --> 00:22:23,367 -[Josh] Right. -[Russ] All right, so you notice here 553 00:22:23,367 --> 00:22:25,400 at the end of this estimated flight path, 554 00:22:25,400 --> 00:22:26,667 they have a set of coordinates. 555 00:22:26,667 --> 00:22:28,500 -That's where they figure the plane went down. -[Josh] Okay. 556 00:22:28,500 --> 00:22:30,100 And that's roughly where on here? 557 00:22:30,100 --> 00:22:31,166 It's roughly right here. 558 00:22:31,166 --> 00:22:32,800 [Josh] Okay, got it. Now, 559 00:22:33,967 --> 00:22:34,867 big question. 560 00:22:34,867 --> 00:22:36,600 Is this an accurate set of coordinates? 561 00:22:36,600 --> 00:22:38,266 -[Russ] So these are the best guesses... -[Josh] Okay. 562 00:22:38,266 --> 00:22:40,100 ...based on the eyewitness testimony, 563 00:22:40,100 --> 00:22:42,500 -the survivors, and the rescuers. -[Josh] Got it. 564 00:22:42,500 --> 00:22:44,100 Now, we did some digging, 565 00:22:44,100 --> 00:22:46,266 and it took years, really... 566 00:22:46,266 --> 00:22:47,500 -[Josh] Right. -...until we finally got the help 567 00:22:47,500 --> 00:22:48,600 of the Coast Guard Historian's Office, 568 00:22:48,600 --> 00:22:51,367 and they were able to produce this amazing document. 569 00:22:51,367 --> 00:22:54,100 -It's been in the archives for the last 72 years. -Wow. 570 00:22:54,100 --> 00:22:56,133 -[Russ] Yeah. -Okay, so what is this? 571 00:23:01,500 --> 00:23:03,567 [Josh] Okay, so what am I looking at? 572 00:23:03,567 --> 00:23:05,767 This is a comprehensive report 573 00:23:05,767 --> 00:23:07,667 from the commander of the Greater Antilles Section. 574 00:23:07,667 --> 00:23:09,400 So this is a Coast Guard report 575 00:23:09,400 --> 00:23:11,767 that just was sitting in the archives in D.C.? 576 00:23:11,767 --> 00:23:13,567 -Yeah. Yeah. -Wow. 577 00:23:13,567 --> 00:23:15,100 Aboard the Blue Manta, 578 00:23:15,100 --> 00:23:17,200 researcher Russ Matthews is showing me 579 00:23:17,200 --> 00:23:19,600 a newly discovered Coast Guard document 580 00:23:19,600 --> 00:23:20,767 that may help pinpoint 581 00:23:20,767 --> 00:23:23,100 the location of the Clipper Endeavor. 582 00:23:23,100 --> 00:23:26,367 The Pan Am plane whose crash in 1952 583 00:23:26,367 --> 00:23:28,467 killed 52 people, resulting in 584 00:23:28,467 --> 00:23:31,300 the air safety rules we still follow today. 585 00:23:31,300 --> 00:23:32,800 So here on the second page, 586 00:23:32,800 --> 00:23:36,000 we find that when the Coast Guard arrived on the scene, 587 00:23:36,000 --> 00:23:37,467 it's about 80 minutes later. 588 00:23:37,467 --> 00:23:38,800 Okay. 589 00:23:40,100 --> 00:23:42,600 The new information from this Coast Guard report 590 00:23:42,600 --> 00:23:45,467 has shown that the oil slick spotted by rescuers, 591 00:23:45,467 --> 00:23:48,967 on which the original investigation based their coordinates, 592 00:23:48,967 --> 00:23:52,867 had likely been drifting for over an hour since the crash. 593 00:23:52,867 --> 00:23:55,500 So using weather data from 1952, 594 00:23:55,500 --> 00:23:59,100 Russ has established a likely origin point for the slick. 595 00:23:59,100 --> 00:24:01,500 Then there's a bearing taken during the crash 596 00:24:01,500 --> 00:24:03,767 by the tower at San Juan Airport, 597 00:24:03,767 --> 00:24:07,400 300 degrees, roughly seven miles offshore. 598 00:24:07,400 --> 00:24:09,200 A statement from a witness says 599 00:24:09,200 --> 00:24:12,400 he saw the Clipper further to the northwest. 600 00:24:12,400 --> 00:24:15,066 And finally, Russ has the location of a reef 601 00:24:15,066 --> 00:24:16,100 near the shore. 602 00:24:16,100 --> 00:24:17,200 The captain said 603 00:24:17,200 --> 00:24:19,667 he deliberately ditched the plane in deeper water 604 00:24:19,667 --> 00:24:20,900 to avoid hitting it. 605 00:24:21,767 --> 00:24:23,066 With all of these points, 606 00:24:23,066 --> 00:24:25,667 Russ is creating a brand-new search zone 607 00:24:25,667 --> 00:24:27,533 to find the Clipper Endeavor. 608 00:24:28,166 --> 00:24:29,266 So, Idee, 609 00:24:29,266 --> 00:24:31,367 how large an area are we talking about scanning here? 610 00:24:31,367 --> 00:24:32,200 We're talking about 611 00:24:32,200 --> 00:24:34,700 ten square nautical miles in total. 612 00:24:34,700 --> 00:24:36,767 [Josh] Not only is this deeper water 613 00:24:36,767 --> 00:24:38,400 than I've ever investigated, 614 00:24:38,400 --> 00:24:42,600 but the search zone will take days and days at sea to cover. 615 00:24:42,600 --> 00:24:43,367 Everyone aboard, though, 616 00:24:43,367 --> 00:24:45,834 is enthusiastic to get underway. 617 00:24:47,166 --> 00:24:49,166 All right, we got a plan. Should we go find a plane? 618 00:24:49,166 --> 00:24:50,367 -Sounds good. -Let's go find a plane. 619 00:24:50,367 --> 00:24:52,033 -Yeah. -Let's do it. Yeah. 620 00:24:56,567 --> 00:25:00,066 [Josh] We've put out to sea where the Clipper Endeavor awaits. 621 00:25:08,767 --> 00:25:10,000 Once we reach the search zone, 622 00:25:10,000 --> 00:25:13,500 it's time to lower the side-scan sonar into the water. 623 00:25:13,500 --> 00:25:16,300 But first, we need to put down something else. 624 00:25:17,367 --> 00:25:19,867 Josh, this is our USBL transducer. 625 00:25:19,867 --> 00:25:21,000 We're gonna put this in the water, 626 00:25:21,000 --> 00:25:23,400 and then we have a beacon on the sonar fish 627 00:25:23,400 --> 00:25:24,533 or the ROV 628 00:25:24,533 --> 00:25:26,567 that will tell us where it is while we're underwater. 629 00:25:26,567 --> 00:25:29,133 -Got it. So this thing's tracking that at all times? -Exactly. 630 00:25:30,000 --> 00:25:31,967 [Josh] On a scan this deep, the transducer 631 00:25:31,967 --> 00:25:34,066 is an essential piece of equipment. 632 00:25:34,066 --> 00:25:37,100 It talks to both the sonar and the ROV 633 00:25:37,100 --> 00:25:39,667 2,000 feet down in the dark. 634 00:25:39,667 --> 00:25:42,500 Without it, we'd have no ability to pilot them safely. 635 00:25:44,100 --> 00:25:45,533 And speaking of safety... 636 00:25:46,367 --> 00:25:49,300 All right, so, not exactly flat calm out here. 637 00:25:49,300 --> 00:25:50,867 [Evan] No, no. It's not ideal. 638 00:25:50,867 --> 00:25:52,667 [Josh] Yeah. Can we sonar scan in this? 639 00:25:52,667 --> 00:25:54,266 Yeah, it's at the edge. It's marginal. 640 00:25:54,266 --> 00:25:56,367 But, you know, it's about a four to six foot sea, 641 00:25:56,367 --> 00:25:57,400 so we're gonna go for it. 642 00:25:57,400 --> 00:26:00,200 So how's this work? Obviously, this sonar unit's 643 00:26:00,200 --> 00:26:01,266 attached to this big winch here. 644 00:26:01,266 --> 00:26:02,166 -What do we got here? -Uh, exactly. 645 00:26:02,166 --> 00:26:03,967 Yeah, so this winch has about 646 00:26:03,967 --> 00:26:05,600 15,000, 16,000 feet on it. 647 00:26:05,600 --> 00:26:08,467 And we're expecting to have anywhere up to 6,000 feet out. 648 00:26:08,467 --> 00:26:09,967 Wow. So we're gonna have 649 00:26:09,967 --> 00:26:11,567 a mile's worth of cable dragging behind us. 650 00:26:11,567 --> 00:26:13,667 We potentially will in our deeper section. 651 00:26:13,667 --> 00:26:14,967 Okay. Should we get it in the water? 652 00:26:14,967 --> 00:26:15,867 -Yeah, let's go. -Let's do it. 653 00:26:15,867 --> 00:26:17,333 Let's scan. Come on. 654 00:26:19,100 --> 00:26:22,166 The Blue Manta is an aluminum twin-engine catamaran, 655 00:26:22,166 --> 00:26:24,433 which means it can handle these seas. 656 00:26:24,967 --> 00:26:25,967 We just need to make sure 657 00:26:25,967 --> 00:26:28,367 that the sensitive sonar doesn't get smashed 658 00:26:28,367 --> 00:26:31,100 as we winch it down into the rough water below. 659 00:26:32,166 --> 00:26:33,400 [Evan] Okay, she's in! 660 00:26:33,400 --> 00:26:37,266 [Josh] And once it's away, the search officially begins. 661 00:26:37,266 --> 00:26:40,266 On our first shift, we fix our eyes to the monitor, 662 00:26:40,266 --> 00:26:44,100 where we scan the first of ten lanes in our search zone. 663 00:26:44,100 --> 00:26:45,667 All is calm. 664 00:26:45,667 --> 00:26:47,233 Well, for a few minutes anyway. 665 00:26:48,567 --> 00:26:50,000 Hmm. Wait, what is that? 666 00:26:50,867 --> 00:26:52,333 Can we see that up close? 667 00:26:52,867 --> 00:26:54,767 It's almost industrial. 668 00:26:54,767 --> 00:26:56,667 [Josh] Right. Maybe an old container there. Yeah, yeah, yeah. 669 00:26:56,667 --> 00:26:57,600 -[Russ] Yeah. -[Josh] I like that. 670 00:26:57,600 --> 00:26:59,800 -[Russ] Mm-hmm. -How much water is this in? 671 00:26:59,800 --> 00:27:01,233 This is in about 800 feet. 672 00:27:01,567 --> 00:27:02,967 Okay. 673 00:27:02,967 --> 00:27:04,567 -We're not scuba diving to that. -[Russ] No. 674 00:27:04,567 --> 00:27:06,300 That's what we got the ROV for. 675 00:27:07,467 --> 00:27:09,000 I think we should see what that is. 676 00:27:09,000 --> 00:27:11,467 We mark the coordinates for us to return to later 677 00:27:11,467 --> 00:27:15,433 with the ROV, and we continue the scan for hours. 678 00:27:16,867 --> 00:27:19,934 It is about 11:34 p.m. 679 00:27:21,266 --> 00:27:22,233 Still scanning. 680 00:27:23,800 --> 00:27:24,567 Quick update. 681 00:27:24,567 --> 00:27:26,567 It's 1:00 a.m. 682 00:27:26,567 --> 00:27:27,867 Still scanning. 683 00:27:31,767 --> 00:27:34,500 All right. So we're coming up on 2:00 a.m. here. 684 00:27:34,500 --> 00:27:35,266 What's your sleep plan? 685 00:27:35,266 --> 00:27:37,467 What's your strategy here, Russ? 686 00:27:37,467 --> 00:27:38,467 I'm gonna power through. 687 00:27:38,467 --> 00:27:39,500 You're not gonna sleep at all? 688 00:27:39,500 --> 00:27:40,500 Probably not. 689 00:27:41,000 --> 00:27:43,000 I mean, it took too much to get 690 00:27:43,000 --> 00:27:44,467 into this position. I'm not... 691 00:27:44,467 --> 00:27:46,400 -You're not leaving? -...wasting a second of it. No. 692 00:27:46,400 --> 00:27:47,800 Well, I admire that. 693 00:27:47,800 --> 00:27:49,233 And you're gonna film all night? 694 00:27:49,400 --> 00:27:50,600 Mm-mm. 695 00:27:51,100 --> 00:27:52,400 [mouthing] I'm going to bed. 696 00:27:53,367 --> 00:27:54,900 Russ is an iron man, 697 00:27:54,900 --> 00:27:56,600 but I've been on enough missions at sea 698 00:27:56,600 --> 00:27:59,300 to know that rest is a valuable commodity. 699 00:27:59,300 --> 00:28:01,300 So I make my way to my bunk... 700 00:28:01,300 --> 00:28:03,567 All right, signing off. 701 00:28:03,567 --> 00:28:05,900 ...to be gently rocked to sleep by the sea. 702 00:28:08,567 --> 00:28:09,667 I said gently. 703 00:28:09,667 --> 00:28:11,900 Can we turn this thing down a little bit? Jeez. 704 00:28:17,266 --> 00:28:18,233 All right. 705 00:28:19,567 --> 00:28:21,166 It's a new day. 706 00:28:21,166 --> 00:28:22,967 Gotta find some breakfast. 707 00:28:22,967 --> 00:28:25,667 Pan Am economy passengers in 1952 708 00:28:25,667 --> 00:28:28,200 got chilled pineapple juice, scrambled eggs 709 00:28:28,200 --> 00:28:29,867 with grilled Canadian bacon, 710 00:28:29,867 --> 00:28:33,066 muffins, and toast with honey and jam. 711 00:28:33,066 --> 00:28:35,367 We do our best to match with burned coffee 712 00:28:35,367 --> 00:28:37,233 and an off-brand frozen waffle. 713 00:28:38,200 --> 00:28:41,600 A couple of not-Eggos later, and we get back to work. 714 00:28:43,066 --> 00:28:45,266 We're scanning lane four of ten, 715 00:28:45,266 --> 00:28:48,133 and the monitor is right where I left it a few hours ago. 716 00:28:48,667 --> 00:28:50,400 The sea floor looks the same. 717 00:28:50,400 --> 00:28:51,667 But after a while, 718 00:28:51,667 --> 00:28:53,734 I'll admit I start to see things. 719 00:28:56,367 --> 00:28:57,800 That's a dinosaur. 720 00:28:58,467 --> 00:28:59,400 Right? 721 00:28:59,400 --> 00:29:02,400 That's the head and the body and the legs. 722 00:29:03,300 --> 00:29:05,066 -It's a little T-Rex face. -[Russ] Hmm. 723 00:29:05,066 --> 00:29:07,467 [Josh] Needing a break, we hand off monitor duty, 724 00:29:07,467 --> 00:29:09,433 and I decide to do a little fishing. 725 00:29:10,066 --> 00:29:11,133 You have any jacks? 726 00:29:11,567 --> 00:29:13,400 Go fish. 727 00:29:13,400 --> 00:29:16,100 [Josh] After I lose, I get to return to an entire morning 728 00:29:16,100 --> 00:29:18,266 and afternoon of staring at a screen 729 00:29:18,266 --> 00:29:20,233 with no hard leads emerging. 730 00:29:20,867 --> 00:29:22,667 Until just before sunset, 731 00:29:22,667 --> 00:29:24,000 I grab some fresh air 732 00:29:24,000 --> 00:29:26,200 and an unfortunate weather report. 733 00:29:26,867 --> 00:29:28,767 Conditions don't look great. 734 00:29:28,767 --> 00:29:29,900 I mean, wind is picking up, 735 00:29:29,900 --> 00:29:32,000 -forecast is for rougher seas tonight, yes? -[Russ] Yes. 736 00:29:32,000 --> 00:29:34,066 Weather's looking like it's gonna turn on us. 737 00:29:34,066 --> 00:29:35,967 -[Josh] Yeah. -Um, higher seas, 738 00:29:35,967 --> 00:29:37,266 maybe some rain. 739 00:29:37,266 --> 00:29:38,367 Higher seas meaning what? 740 00:29:38,367 --> 00:29:39,467 Uh, ten feet. 741 00:29:39,467 --> 00:29:40,600 -Ten-foot seas? -[Russ] Yeah. 742 00:29:40,600 --> 00:29:42,867 [scoffs] Okay, that'll be a fun night. 743 00:29:42,867 --> 00:29:45,367 It's gonna get rough. We're gonna get beat up a bit. 744 00:29:45,367 --> 00:29:47,967 All right. Well, fasten your seat belts. 745 00:29:47,967 --> 00:29:49,467 It's gonna be a bumpy night. 746 00:29:51,367 --> 00:29:55,100 So far on our trip, the sea has been bumpy but manageable. 747 00:29:55,100 --> 00:29:56,166 On night number two, though, 748 00:29:56,166 --> 00:29:59,200 Mother Nature has decided to crank up the dial. 749 00:30:02,767 --> 00:30:04,066 Getting bad out. 750 00:30:15,500 --> 00:30:17,600 [Josh] Somewhere in the waters off Puerto Rico 751 00:30:17,600 --> 00:30:19,900 is the wreckage of the Clipper Endeavor. 752 00:30:19,900 --> 00:30:21,700 And while scanning 2,000 feet 753 00:30:21,700 --> 00:30:24,266 beneath the surface of the Atlantic is never easy, 754 00:30:24,266 --> 00:30:27,900 a raging storm is making tonight's work especially difficult. 755 00:30:31,100 --> 00:30:33,600 Oh, my God. Flying fish! 756 00:30:34,300 --> 00:30:36,367 The fish just jumped into the boat. 757 00:30:36,367 --> 00:30:37,667 Unbelievable. 758 00:30:37,667 --> 00:30:40,500 Hopefully, that's not the only catch of the day. 759 00:30:40,500 --> 00:30:43,467 We toss it back and brace for even worse seas, 760 00:30:43,467 --> 00:30:45,033 and they don't disappoint. 761 00:30:47,100 --> 00:30:50,000 Waves crash over the bow of our research vessel. 762 00:30:50,000 --> 00:30:52,567 Half the crew is throwing up off camera somewhere, 763 00:30:52,567 --> 00:30:55,300 and those who aren't are immobilized by nausea 764 00:30:55,300 --> 00:30:56,700 and soaked to the bone. 765 00:30:58,700 --> 00:31:01,767 Yet this experience is another sobering reminder 766 00:31:01,767 --> 00:31:03,867 that Clipper Endeavor's survivors clutched 767 00:31:03,867 --> 00:31:06,867 to a life raft in waves even larger than these 768 00:31:06,867 --> 00:31:08,333 while waiting for rescue. 769 00:31:10,967 --> 00:31:12,767 After suffering Poseidon's wrath 770 00:31:12,767 --> 00:31:14,300 for nearly five hours, 771 00:31:14,300 --> 00:31:17,500 the seas finally abate and the world stops spinning. 772 00:31:18,567 --> 00:31:20,767 All right, time to get back into the mix. 773 00:31:20,767 --> 00:31:23,333 I head below deck and return to scanning. 774 00:31:24,266 --> 00:31:26,233 Oh. What is that? 775 00:31:27,166 --> 00:31:28,400 That's not nothing. 776 00:31:28,400 --> 00:31:30,767 -What is that? -Can we go closer on that? 777 00:31:30,767 --> 00:31:32,700 [Josh] How long is just the bottom piece? 778 00:31:32,700 --> 00:31:34,000 [Ben] About 50 feet. 779 00:31:34,000 --> 00:31:34,867 Width? 780 00:31:34,867 --> 00:31:36,066 About 20 feet. 781 00:31:36,066 --> 00:31:38,166 It's in the pocket for the fuselage. 782 00:31:38,166 --> 00:31:40,500 This target is long enough and wide enough 783 00:31:40,500 --> 00:31:42,567 to be a DC-4 fuselage, 784 00:31:42,567 --> 00:31:44,567 and is casting a sonar shadow 785 00:31:44,567 --> 00:31:47,567 that suggests it rises from the ocean floor. 786 00:31:47,567 --> 00:31:50,166 We mark it to come back later with the ROV 787 00:31:50,166 --> 00:31:51,900 and spend the remainder of the night 788 00:31:51,900 --> 00:31:53,600 scanning through the search zone. 789 00:32:00,166 --> 00:32:03,400 On the third day, we enter the final lanes of scanning. 790 00:32:03,400 --> 00:32:05,634 It starts out like the previous lanes. 791 00:32:08,600 --> 00:32:10,233 It doesn't end like them. 792 00:32:11,367 --> 00:32:12,233 Oh. 793 00:32:12,500 --> 00:32:13,600 What is that? 794 00:32:13,600 --> 00:32:16,166 That looks like it could be the tail of an airplane. 795 00:32:16,166 --> 00:32:17,400 What's the size of that? 796 00:32:17,400 --> 00:32:20,100 It's about 35 feet long, 797 00:32:20,100 --> 00:32:22,033 broken into a couple pieces. 798 00:32:22,367 --> 00:32:23,533 Tail's how high? 799 00:32:23,867 --> 00:32:25,300 27 feet. 800 00:32:25,300 --> 00:32:27,634 [Josh] How long is just the larger piece? 801 00:32:28,266 --> 00:32:30,700 Uh, 7 meters, about 25 feet. 802 00:32:32,667 --> 00:32:33,700 Tail? 803 00:32:33,700 --> 00:32:36,300 I mean, it's the one piece that we know for sure 804 00:32:36,300 --> 00:32:37,567 separated from the airplane. 805 00:32:37,567 --> 00:32:39,300 -It should be sitting by itself. -[Russ] Yeah. 806 00:32:39,300 --> 00:32:40,900 Only one way to know for sure. 807 00:32:40,900 --> 00:32:42,667 I would love to dive on this. 808 00:32:42,667 --> 00:32:44,333 -Let's see what it is. -[Russ] Okay. 809 00:32:45,367 --> 00:32:47,367 [Josh] This is our best hit thus far, 810 00:32:47,367 --> 00:32:49,367 and we immediately add it to our list 811 00:32:49,367 --> 00:32:51,467 to follow up with the ROV. 812 00:32:51,467 --> 00:32:54,400 When we finally complete the search zone a few hours later, 813 00:32:54,400 --> 00:32:56,800 we have four solid targets to investigate, 814 00:32:56,800 --> 00:32:59,166 including one that resembled the fuselage 815 00:32:59,166 --> 00:33:00,800 and another the tail. 816 00:33:01,867 --> 00:33:04,600 I go on deck to welcome the towfish back aboard. 817 00:33:07,700 --> 00:33:10,367 Okay. Sonar unit is coming up. We're gonna 818 00:33:10,367 --> 00:33:12,066 switch the winch over to the ROV, 819 00:33:12,066 --> 00:33:13,467 get that in the water, get it down. 820 00:33:13,467 --> 00:33:14,900 Check out these targets. 821 00:33:15,900 --> 00:33:18,867 It takes hours to raise and stow the sonar. 822 00:33:18,867 --> 00:33:21,400 Then we transfer the cable to the ROV 823 00:33:21,400 --> 00:33:24,433 to dive our first target as the sun sets. 824 00:33:26,767 --> 00:33:28,867 Once we verify the data connection, 825 00:33:28,867 --> 00:33:30,700 we pair it to our transducer 826 00:33:30,700 --> 00:33:33,100 so that we can track its movements to the inch 827 00:33:33,100 --> 00:33:35,500 as it descends to the bottom of the Atlantic. 828 00:33:37,066 --> 00:33:39,200 The ROV is released into the water 829 00:33:39,200 --> 00:33:41,200 and begins the long, dark descent 830 00:33:41,200 --> 00:33:44,433 to the possible tail section we discovered in lane ten. 831 00:33:47,767 --> 00:33:48,900 ROV is diving? 832 00:33:49,567 --> 00:33:52,100 Yeah, we are heading down. 833 00:33:56,600 --> 00:33:57,867 Passing 100 feet. 834 00:33:57,867 --> 00:33:59,467 [Josh] Okay, going down. 835 00:33:59,467 --> 00:34:01,667 The descent is slow and careful. 836 00:34:01,667 --> 00:34:04,033 Everything below us is an unknown. 837 00:34:04,667 --> 00:34:07,266 All right, passing 600. 838 00:34:07,266 --> 00:34:09,233 Okay, almost there. Here we go. 839 00:34:10,500 --> 00:34:13,767 The bottom should be coming into view pretty soon here. 840 00:34:13,767 --> 00:34:16,000 [Evan] Yeah, we should be coming in any minute now. 841 00:34:16,000 --> 00:34:18,233 [Josh] Here we go. Okay. We are on the bottom. 842 00:34:18,667 --> 00:34:19,967 Wow, look at that. 843 00:34:21,867 --> 00:34:24,300 [Evan] All right, well, let's head to the target. 844 00:34:25,767 --> 00:34:27,900 -The visibility is not great. -[Evan] Nope. 845 00:34:28,467 --> 00:34:29,934 Dark and sandy. 846 00:34:32,166 --> 00:34:33,767 And what's stamped on that tail livery? 847 00:34:33,767 --> 00:34:35,800 Uh, it's got the PAA logo... 848 00:34:35,800 --> 00:34:37,600 -Right. -...and the registration number. 849 00:34:37,600 --> 00:34:38,567 [Josh] Right. 850 00:34:38,567 --> 00:34:41,367 [Russ] N88899. 851 00:34:41,367 --> 00:34:43,200 -Seared into your memory. -Yes. 852 00:34:45,867 --> 00:34:47,367 It's a little tough with the topography, too. 853 00:34:47,367 --> 00:34:48,867 It's like these little hills and stuff in front of you. 854 00:34:48,867 --> 00:34:51,000 Yeah, it's just... They're big sand waves. 855 00:34:52,767 --> 00:34:55,567 [Josh] It seems totally flat when you're looking at it on that screen going by, 856 00:34:55,567 --> 00:34:57,867 but you realize there's a lot of actual... 857 00:34:57,867 --> 00:35:00,400 There's a lot of texture down here, a lot of topography. 858 00:35:02,667 --> 00:35:05,600 The sonar from our towfish found the target. 859 00:35:05,600 --> 00:35:09,300 Now we're relying on the ROV's sonar to bring us to it. 860 00:35:12,166 --> 00:35:13,467 Ooh, sonar. Is that something? 861 00:35:13,467 --> 00:35:16,200 Yeah, no, no, no. We got something coming up on the sonar here. 862 00:35:21,166 --> 00:35:23,333 Oh, oh, oh, oh, oh. Something there. 863 00:35:25,100 --> 00:35:25,934 What is that? 864 00:35:30,867 --> 00:35:34,066 In 1978, the Pina Colada was declared 865 00:35:34,066 --> 00:35:36,266 the official drink of Puerto Rico. 866 00:35:36,266 --> 00:35:38,367 But bragging rights for the original recipe 867 00:35:38,367 --> 00:35:40,200 have caused many a bar fight. 868 00:35:40,200 --> 00:35:42,400 Legend holds that a Puerto Rican pirate 869 00:35:42,400 --> 00:35:45,500 invented the cocktail to help improve crew morale, 870 00:35:45,500 --> 00:35:47,800 but that the recipe was lost. 871 00:35:47,800 --> 00:35:49,667 That is, until 1954, 872 00:35:49,667 --> 00:35:52,467 when the Caribe Hilton's Ramon "Chito" Marrero 873 00:35:52,467 --> 00:35:54,700 mixed together rum, pineapple juice, 874 00:35:54,700 --> 00:35:56,166 and cream of coconut, 875 00:35:56,166 --> 00:35:58,033 creating the Pina Colada. 876 00:35:58,600 --> 00:36:00,166 Or so they say. 877 00:36:00,467 --> 00:36:01,767 Perfection. 878 00:36:02,967 --> 00:36:05,300 A short time later, the Barrachina restaurant 879 00:36:05,300 --> 00:36:08,066 claimed a recipe of their own to be the original, 880 00:36:08,066 --> 00:36:11,133 and now serves 3,500 of them a day. 881 00:36:11,667 --> 00:36:13,700 Let's make that 3,501. 882 00:36:14,467 --> 00:36:15,500 Oh, that's amazing. 883 00:36:15,500 --> 00:36:17,100 -I know. -[Josh] Which is better? 884 00:36:17,100 --> 00:36:18,967 The investigation is ongoing. 885 00:36:18,967 --> 00:36:21,667 I should probably have about 40 more of these to figure it out. 886 00:36:21,667 --> 00:36:22,700 Keep them coming, Jorge. 887 00:36:23,066 --> 00:36:24,300 No problem. 888 00:36:24,700 --> 00:36:25,700 [mouthing] It's this one. 889 00:36:30,200 --> 00:36:32,567 All right. Yeah, we got something right here. 890 00:36:32,567 --> 00:36:34,500 -Uh... -Oh, something there. 891 00:36:35,700 --> 00:36:36,734 What is that? 892 00:36:43,667 --> 00:36:44,767 Is that sand? 893 00:36:45,467 --> 00:36:46,600 [Evan] I thought it was something solid, 894 00:36:46,600 --> 00:36:48,333 but it could be a clay bank. 895 00:36:52,700 --> 00:36:54,367 Yeah. Yeah, it is. 896 00:36:54,367 --> 00:36:56,900 -Arms going right through. That's just clay. -[Evan] Yep. 897 00:36:59,000 --> 00:37:00,867 I mean, a big, flat surface there 898 00:37:00,867 --> 00:37:02,600 reflecting off the sonar. 899 00:37:04,400 --> 00:37:05,100 -Totally. -[Evan] Yeah. 900 00:37:08,567 --> 00:37:09,467 -tail fin. -Like a tail fin. 901 00:37:09,467 --> 00:37:10,600 -Right. -Yeah. 902 00:37:11,567 --> 00:37:13,000 But it's weird. There's nothing in... 903 00:37:13,000 --> 00:37:14,834 -I mean, it's just clay. -[Josh] Yeah. 904 00:37:17,900 --> 00:37:19,300 Heartbreaker. 905 00:37:19,300 --> 00:37:20,800 The topography has fooled us 906 00:37:20,800 --> 00:37:23,166 into reading a natural sand formation 907 00:37:23,166 --> 00:37:24,900 as potentially man-made. 908 00:37:25,266 --> 00:37:26,867 So, strike one. 909 00:37:26,867 --> 00:37:29,066 Intriguing target. Not Clipper Endeavor. 910 00:37:29,066 --> 00:37:30,133 No. No. 911 00:37:30,667 --> 00:37:32,767 There's still more out there. 912 00:37:32,767 --> 00:37:34,800 Let's get some shut-eye and we'll try again tomorrow. 913 00:37:34,800 --> 00:37:35,834 Absolutely. 914 00:37:35,834 --> 00:37:37,567 All right, Evan, I think we're gonna bring her up. 915 00:37:37,567 --> 00:37:38,900 Copy that. Bringing her up. 916 00:37:41,166 --> 00:37:42,867 [Josh] After hauling up the ROV, 917 00:37:42,867 --> 00:37:45,200 we head to our bunks for a few hours of sleep 918 00:37:45,200 --> 00:37:48,300 as the boat steams back to our second sonar target. 919 00:37:54,567 --> 00:37:56,800 I awake the next morning as the team prepares 920 00:37:56,800 --> 00:37:58,700 to redeploy the ROV. 921 00:37:58,700 --> 00:38:00,900 And the day starts off with a bang. 922 00:38:01,266 --> 00:38:03,467 Or should I say, a snap. 923 00:38:03,467 --> 00:38:05,400 [indistinct chatter] 924 00:38:08,300 --> 00:38:10,166 -[man 1] Whoa. Up and over. -[man 2] Where are we going with that? 925 00:38:10,166 --> 00:38:10,900 [man 1] Up and over. 926 00:38:10,900 --> 00:38:12,500 [man 2] Up and over. All right. 927 00:38:15,600 --> 00:38:16,600 [Josh] Something wrong out there. 928 00:38:17,500 --> 00:38:18,333 They got a problem out there. 929 00:38:21,400 --> 00:38:23,100 -Whoa! What happened? -[Evan] Yeah. 930 00:38:23,667 --> 00:38:25,000 Whole tracking pole let go. 931 00:38:25,000 --> 00:38:26,967 It broke off? 932 00:38:26,967 --> 00:38:29,533 The bracket sheared right there at the attachment. 933 00:38:31,600 --> 00:38:32,767 [Josh] I'm, uh... 934 00:38:32,767 --> 00:38:34,634 I'm afraid to ask. What does this mean? 935 00:38:35,200 --> 00:38:36,500 Uh, we don't know... [sighs] 936 00:38:36,500 --> 00:38:38,367 Yeah. Wow. Uh... 937 00:38:38,367 --> 00:38:39,567 This is basically 938 00:38:39,567 --> 00:38:41,300 the transducer for the underwater GPS. 939 00:38:41,300 --> 00:38:42,500 -Right. -[Evan] So, 940 00:38:42,500 --> 00:38:45,367 first and foremost, we've lost all underwater positioning, 941 00:38:45,367 --> 00:38:47,667 which then means we can't use the ROV. 942 00:38:47,667 --> 00:38:50,266 Basically, diving the ROV without this is 943 00:38:50,266 --> 00:38:51,667 stumbling around in a dark room 944 00:38:51,667 --> 00:38:52,800 with a flashlight, 945 00:38:52,800 --> 00:38:54,400 but the room's the size of Manhattan. 946 00:38:54,400 --> 00:38:56,300 -We're done? -We're done. Yeah. 947 00:38:57,000 --> 00:38:58,567 [Josh] This is devastating. 948 00:38:58,567 --> 00:39:00,467 After almost a week of scanning 949 00:39:00,467 --> 00:39:02,200 and searching with the ROV, 950 00:39:02,200 --> 00:39:04,567 we're unable to continue the investigation 951 00:39:04,567 --> 00:39:07,767 or probe any remaining targets. 952 00:39:07,767 --> 00:39:10,000 All right, well, let's regroup and get this thing secured 953 00:39:10,000 --> 00:39:11,900 -to figure out where we go from here. -[Evan] Yep. 954 00:39:12,967 --> 00:39:14,200 [Josh] Russ and Idee 955 00:39:14,200 --> 00:39:16,967 have spent years using every available piece of evidence 956 00:39:16,967 --> 00:39:18,800 to home in on this search zone. 957 00:39:18,800 --> 00:39:20,867 And while several targets remain, 958 00:39:20,867 --> 00:39:23,500 I'm not sure any of them feel diagnostic enough 959 00:39:23,500 --> 00:39:25,700 to be something as large as the Clipper. 960 00:39:26,867 --> 00:39:28,667 If you were a betting man, 961 00:39:28,667 --> 00:39:30,266 where would you put it down? 962 00:39:30,266 --> 00:39:32,000 -I was betting it's in here. -Right. 963 00:39:32,000 --> 00:39:33,600 -Yeah. -Do you think maybe it still is? 964 00:39:34,166 --> 00:39:35,467 It's a mystery, Josh. 965 00:39:35,467 --> 00:39:36,700 [Josh] It is a real mystery 966 00:39:36,700 --> 00:39:40,500 because having been a part of many searches for lost planes, 967 00:39:40,500 --> 00:39:43,266 this one feels really findable. 968 00:39:43,266 --> 00:39:44,567 -Yeah. -[Josh] It just 969 00:39:44,567 --> 00:39:46,667 feels like there's so much data. 970 00:39:46,667 --> 00:39:50,266 You've created, I think, such a sensible bounding box here. 971 00:39:50,266 --> 00:39:53,000 -It just feels like it should be in here. -Right. 972 00:39:53,000 --> 00:39:55,200 All these voices from 72 years ago 973 00:39:55,200 --> 00:39:56,867 are just reaching out and saying 974 00:39:56,867 --> 00:39:58,333 -this is where it is. -[Russ] Yeah. 975 00:39:58,967 --> 00:40:02,000 -They want to be found. -Big time. 976 00:40:02,000 --> 00:40:04,000 [Russ] We're not giving up. We'll be back. 977 00:40:09,900 --> 00:40:12,100 [Josh] If I've learned one thing studying history, 978 00:40:12,100 --> 00:40:14,900 it's that tragedy always leaves a legacy. 979 00:40:15,467 --> 00:40:17,600 There's loss and there's pain. 980 00:40:17,967 --> 00:40:19,867 Those are unavoidable. 981 00:40:19,867 --> 00:40:21,767 But in the case of the Clipper Endeavor, 982 00:40:21,767 --> 00:40:23,500 there's also growth. 983 00:40:25,567 --> 00:40:27,600 After the accident, the Clipper's captain 984 00:40:27,600 --> 00:40:30,166 recommended a pre-flight safety briefing 985 00:40:30,166 --> 00:40:32,233 to avert panic and confusion. 986 00:40:32,967 --> 00:40:35,100 Pan Am wisely heeded his advice, 987 00:40:35,100 --> 00:40:37,834 followed by the rest of the aviation industry. 988 00:40:38,467 --> 00:40:39,600 And you know what happened? 989 00:40:40,100 --> 00:40:41,200 It worked. 990 00:40:42,667 --> 00:40:45,066 Four years later, Pan Am Flight 6 991 00:40:45,066 --> 00:40:46,867 ditched in the Pacific Ocean. 992 00:40:46,867 --> 00:40:49,300 Its captain not only did a safety briefing 993 00:40:49,300 --> 00:40:51,567 but he and his crew spoke with passengers 994 00:40:51,567 --> 00:40:54,266 throughout the ordeal to set them at ease. 995 00:40:54,266 --> 00:40:57,300 And everyone escaped with their lives. 996 00:40:57,300 --> 00:41:00,634 So did countless others in the 70 years that followed. 997 00:41:01,900 --> 00:41:04,867 We are demonstrably safer as passengers today 998 00:41:04,867 --> 00:41:07,100 because of the Clipper Endeavor. 999 00:41:07,100 --> 00:41:10,166 Yet this was not a sacrifice willingly made. 1000 00:41:10,166 --> 00:41:12,500 That's why Russ, Idee, and the team 1001 00:41:12,500 --> 00:41:13,967 will keep searching. 1002 00:41:13,967 --> 00:41:17,000 Using this mission to learn, to adapt, 1003 00:41:17,000 --> 00:41:20,000 and to refine the search grid for the next mission, 1004 00:41:20,000 --> 00:41:22,200 until the plane is found. 1005 00:41:22,200 --> 00:41:24,100 So that those who gave their lives 1006 00:41:24,100 --> 00:41:26,700 can receive the full measure of gratitude 1007 00:41:26,700 --> 00:41:28,767 that they so richly deserve.