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These are the user uploaded subtitles that are being translated: 1 00:00:02,502 --> 00:00:03,336 A scene of devastation 2 00:00:03,403 --> 00:00:05,705 in a remote region of Venezuela 3 00:00:05,772 --> 00:00:08,375 confirms the fate of a missing passenger jet. 4 00:00:11,411 --> 00:00:13,847 West Caribbean Airways flight 708 5 00:00:13,913 --> 00:00:16,449 has mysteriously dropped from the sky 6 00:00:16,516 --> 00:00:19,686 while flying at over 30,000 feet. 7 00:00:19,753 --> 00:00:21,121 It took off from Panama. 8 00:00:21,187 --> 00:00:22,522 It's a Colombian operator. 9 00:00:22,589 --> 00:00:25,959 There was 160 french citizens on board. 10 00:00:26,025 --> 00:00:28,762 It's the biggest accident that has ever occurred 11 00:00:28,828 --> 00:00:30,330 in Venezuelan territory. 12 00:00:30,397 --> 00:00:31,564 Investigators hope 13 00:00:31,631 --> 00:00:33,066 the crew's desperate last words... 14 00:00:33,133 --> 00:00:34,167 West 708. 15 00:00:34,234 --> 00:00:35,635 Do you have a problem on board? 16 00:00:35,702 --> 00:00:37,604 ...will help them pinpoint the cause of the crash. 17 00:00:37,670 --> 00:00:38,872 Affirmative. 18 00:00:38,938 --> 00:00:41,474 Tell them we've had a flameout on both engines. 19 00:00:41,541 --> 00:00:44,911 But instead the mystery deepens. 20 00:00:44,978 --> 00:00:46,379 It's a stall, captain. 21 00:00:46,446 --> 00:00:47,914 It's a stall. 22 00:00:47,981 --> 00:00:49,349 The pilots can't agree 23 00:00:49,416 --> 00:00:51,284 on why the plane is falling. 24 00:00:53,887 --> 00:00:57,157 Now it's up to investigators to figure it out. 25 00:00:59,025 --> 00:01:00,093 Ladies and gentlemen, 26 00:01:00,160 --> 00:01:01,127 we are starting our approach. 27 00:01:01,194 --> 00:01:02,362 We lost both engines! 28 00:01:02,429 --> 00:01:03,563 Put the mask over your nose. 29 00:01:03,630 --> 00:01:04,564 Emergency descent. 30 00:01:04,631 --> 00:01:05,632 Mayday, mayday. 31 00:01:05,698 --> 00:01:07,667 Brace for impact! 32 00:01:07,734 --> 00:01:08,701 I think I lost one. 33 00:01:08,768 --> 00:01:10,503 Investigation starting... 34 00:01:11,905 --> 00:01:13,473 He's gonna crash! 35 00:01:35,161 --> 00:01:38,031 At Panama's Tocumen International Airport, 36 00:01:38,097 --> 00:01:40,467 West Caribbean Airways flight 708 37 00:01:40,533 --> 00:01:43,536 begins boarding two hours behind schedule. 38 00:01:47,173 --> 00:01:49,142 It's past midnight. 39 00:01:49,209 --> 00:01:52,145 The 152 passengers on this charter flight 40 00:01:52,212 --> 00:01:54,747 are returning home to Martinique. 41 00:01:54,814 --> 00:01:57,383 They've been visiting the Panama Canal. 42 00:02:00,253 --> 00:02:02,455 Captain Omar Ospina has just flown in 43 00:02:02,522 --> 00:02:05,024 with his crew from Colombia. 44 00:02:05,091 --> 00:02:09,696 As he's behind schedule, he must turn the plane around quickly. 45 00:02:09,762 --> 00:02:13,032 But there are more unexpected delays. 46 00:02:13,099 --> 00:02:15,435 First officer David Muñoz informs the captain 47 00:02:15,502 --> 00:02:18,104 that the flight is overbooked. 48 00:02:18,171 --> 00:02:22,075 Even the jump seat in the cockpit is filled. 49 00:02:22,141 --> 00:02:23,977 Let me deal with it. 50 00:02:24,043 --> 00:02:25,478 Alejo, I need you on board 51 00:02:25,545 --> 00:02:27,347 to do the announcements in Spanish and English. 52 00:02:27,413 --> 00:02:28,414 Yes, sir. 53 00:02:28,481 --> 00:02:29,682 Angela and Luisa can stay behind. 54 00:02:29,749 --> 00:02:31,184 I'll let them know. 55 00:02:31,251 --> 00:02:32,452 Two of the flight attendants 56 00:02:32,519 --> 00:02:33,720 will stay in Panama 57 00:02:33,786 --> 00:02:37,290 because there's not enough room on board. 58 00:02:37,357 --> 00:02:39,459 Sir, we just got the final load sheet. 59 00:02:44,063 --> 00:02:45,598 Checking the weight of the aircraft... 60 00:02:45,665 --> 00:02:47,634 Take off from runway 21 left, sir. 61 00:02:47,700 --> 00:02:48,735 3,050 meters. 62 00:02:48,801 --> 00:02:50,570 ...and the length of runway, 63 00:02:50,637 --> 00:02:54,607 Captain Ospina calculates that he can safely get airborne. 64 00:02:57,410 --> 00:03:00,813 Their flight path will take them through some heavy weather, 65 00:03:00,880 --> 00:03:04,484 something crews are accustomed to during hurricane season. 66 00:03:04,551 --> 00:03:06,185 Okay, we're ready for takeoff. 67 00:03:06,252 --> 00:03:08,054 Request pushback clearance. 68 00:03:08,121 --> 00:03:10,523 Ground, West Caribbean Airways 708 69 00:03:10,590 --> 00:03:13,459 request pushback clearance, gate 28. 70 00:03:13,526 --> 00:03:17,163 West Caribbean 708, cleared for pushback, gate 28. 71 00:03:20,867 --> 00:03:23,436 Proceed to runway 21 left. 72 00:03:29,676 --> 00:03:32,145 West Caribbean 708 runway 21 left 73 00:03:32,211 --> 00:03:34,380 cleared for takeoff. 74 00:03:48,328 --> 00:03:50,964 V-1. 75 00:03:51,030 --> 00:03:52,966 Rotate. 76 00:03:56,069 --> 00:03:57,236 At 1:00 in the morning, 77 00:03:57,303 --> 00:04:01,374 flight 708 begins the journey to Martinique. 78 00:04:01,441 --> 00:04:03,176 They took off from Panama Airport, 79 00:04:03,242 --> 00:04:05,211 Tocumen Airport, 80 00:04:05,278 --> 00:04:09,582 with a heavy load for a long flight for that aircraft. 81 00:04:12,118 --> 00:04:14,954 The flight should take three hours. 82 00:04:15,021 --> 00:04:17,323 They climb up to 31,000 feet, 83 00:04:17,390 --> 00:04:21,561 their initial assigned flight level. 84 00:04:21,628 --> 00:04:23,630 They have filed a flight plan 85 00:04:23,696 --> 00:04:26,666 with a final cruise level of 3-3-0-- 86 00:04:26,733 --> 00:04:29,502 33,000 feet. 87 00:04:29,569 --> 00:04:34,440 The crew is flying an MD-80. 88 00:04:34,507 --> 00:04:38,177 The plane is easily recognizable by its two rear-mounted engines. 89 00:04:38,244 --> 00:04:41,981 The MD-80 aircraft is a very good aircraft. 90 00:04:42,048 --> 00:04:46,653 It's a model that was derived from the DC-9. 91 00:04:46,719 --> 00:04:49,822 They made it longer, more fuel efficient 92 00:04:49,889 --> 00:04:54,193 and more modern instrumentation and avionics. 93 00:04:54,260 --> 00:04:56,029 Anti-ice on, please. 94 00:04:56,095 --> 00:04:59,198 As altitude increases and temperature drops, 95 00:04:59,265 --> 00:05:02,068 they activate the plane's anti-ice system. 96 00:05:05,738 --> 00:05:09,742 Half an hour into the flight, while cruising at 31,000 feet, 97 00:05:09,809 --> 00:05:14,013 the weather ahead is turning nasty. 98 00:05:14,080 --> 00:05:17,216 A low-intensity hurricane moving in from the Atlantic 99 00:05:17,283 --> 00:05:19,986 is whipping up winds across the region. 100 00:05:22,889 --> 00:05:25,491 Request deviation left. 101 00:05:25,558 --> 00:05:28,261 Barranquilla, West 708, request deviation 102 00:05:28,327 --> 00:05:29,829 to the left to avoid formation. 103 00:05:29,896 --> 00:05:33,166 West Caribbean 708 cleared to deviate left. 104 00:05:39,305 --> 00:05:40,707 In the kind of weather they were flying, 105 00:05:40,773 --> 00:05:44,777 it's common for pilots to deviate from their initial route 106 00:05:44,844 --> 00:05:47,013 to avoid this bad weather. 107 00:05:49,615 --> 00:05:51,784 It should get better soon. 108 00:05:59,892 --> 00:06:01,694 40 minutes into the flight 109 00:06:01,761 --> 00:06:04,764 the plane has burned through thousands of pounds of fuel, 110 00:06:04,831 --> 00:06:06,899 allowing it to fly higher. 111 00:06:06,966 --> 00:06:08,334 In order to reduce weight, 112 00:06:08,401 --> 00:06:11,037 they had to climb to 31,000 feet, 113 00:06:11,104 --> 00:06:13,272 wait until the weight goes down 114 00:06:13,339 --> 00:06:17,510 and then do a step climb up to 33,000 feet. 115 00:06:17,577 --> 00:06:19,045 Let's do 3-3-0. 116 00:06:19,112 --> 00:06:21,614 3-3-0. 117 00:06:21,681 --> 00:06:25,685 Barranquilla, West 708 request level 3-3-0. 118 00:06:25,752 --> 00:06:29,889 708 cleared to level 3-3-0. 119 00:06:29,956 --> 00:06:31,624 The captain now begins the climb 120 00:06:31,691 --> 00:06:35,061 to their scheduled altitude of 33,000 feet. 121 00:06:47,306 --> 00:06:49,008 Turn off engine anti-icing. 122 00:07:03,222 --> 00:07:04,757 I can't accelerate. 123 00:07:07,193 --> 00:07:09,128 The captain notices that the engines 124 00:07:09,195 --> 00:07:12,632 don't seem to be responding. 125 00:07:12,698 --> 00:07:14,934 I'm going to the bathroom. 126 00:07:15,001 --> 00:07:18,271 The crew isn't overly concerned. 127 00:07:20,940 --> 00:07:23,843 Almost a third of the way to Martinique, 128 00:07:23,910 --> 00:07:27,880 West Caribbean flight 708 enters Venezuelan airspace. 129 00:07:34,020 --> 00:07:36,322 Is there cake and coffee for everybody? 130 00:07:36,389 --> 00:07:38,424 Or are we expected to share? 131 00:07:43,262 --> 00:07:44,931 As the storm intensifies, 132 00:07:44,997 --> 00:07:48,568 first officer Muñoz worries about icing. 133 00:07:48,634 --> 00:07:51,904 -Do I turn it on, captain? -Do we have ice? 134 00:08:02,014 --> 00:08:03,349 Put 'em on. 135 00:08:17,230 --> 00:08:20,533 Soon the turbulence gets worse. 136 00:08:20,600 --> 00:08:23,269 Man, that is a lot of nasty weather. 137 00:08:23,336 --> 00:08:25,605 Put the fasten seatbelt sign on. 138 00:08:39,619 --> 00:08:42,421 Please stay in your seat. 139 00:08:46,392 --> 00:08:49,395 I'm dimming the lights so the passengers don't stand up. 140 00:08:53,933 --> 00:08:57,303 Should we go down to level 3-1-0? 141 00:08:57,370 --> 00:09:00,072 Do it. 142 00:09:00,139 --> 00:09:01,474 Maiquetia, Whisky-Charlie. 143 00:09:01,540 --> 00:09:03,442 The Maiquetia Air Traffic Control Station 144 00:09:03,509 --> 00:09:06,979 in Venezuela isn't equipped with radar. 145 00:09:07,046 --> 00:09:09,849 Request descent to level 3-1-0. 146 00:09:09,916 --> 00:09:11,684 The controller depends on pilots 147 00:09:11,751 --> 00:09:13,185 to tell him where they are. 148 00:09:13,252 --> 00:09:15,621 3-1-0. 149 00:09:15,688 --> 00:09:18,024 Captain Ospina turns off the autopilot... 150 00:09:18,090 --> 00:09:19,959 Give me 3-1-0. 151 00:09:20,026 --> 00:09:21,694 ...and the plane starts heading back down 152 00:09:21,761 --> 00:09:23,629 to 31,000 feet. 153 00:09:26,465 --> 00:09:29,268 The turbulence is getting even heavier... 154 00:09:30,770 --> 00:09:33,572 ...and then suddenly the stick shaker goes off. 155 00:09:33,639 --> 00:09:37,743 It's the most serious warning that a crew can get. 156 00:09:37,810 --> 00:09:40,413 The captain's control column starts to vibrate, 157 00:09:40,479 --> 00:09:44,817 warning him the plane is flying dangerously slow. 158 00:09:44,884 --> 00:09:48,788 At close to 31,000 feet, the plane suddenly drops. 159 00:09:56,862 --> 00:09:59,031 It's a stall, captain! 160 00:09:59,098 --> 00:10:00,733 It's a stall! 161 00:10:00,800 --> 00:10:02,902 The plane is falling fast. 162 00:10:02,969 --> 00:10:06,005 The crew has only seconds to figure out why. 163 00:10:09,709 --> 00:10:15,614 West 708, level down to level 2-4-0. 164 00:10:15,681 --> 00:10:17,516 Descending to 2-4-0. 165 00:10:17,583 --> 00:10:18,751 Do you have a problem on board? 166 00:10:18,818 --> 00:10:20,186 Affirmative. 167 00:10:20,252 --> 00:10:22,955 Tell him we've had a flameout on both engines. 168 00:10:23,022 --> 00:10:25,157 We've had a flameout on both engines. 169 00:10:25,224 --> 00:10:26,359 Confirm? 170 00:10:26,425 --> 00:10:28,227 We've had a flameout on both engines! 171 00:10:28,294 --> 00:10:29,762 Roger. 172 00:10:29,829 --> 00:10:33,666 Confirm radial and distance from Punto Cabello if possible. 173 00:10:33,733 --> 00:10:36,268 The controller needs to know where they are. 174 00:10:38,871 --> 00:10:40,006 Negative! Negative! 175 00:10:40,072 --> 00:10:41,741 We are at 14,000 feet. 176 00:10:41,807 --> 00:10:43,142 We're about 14,000. 177 00:10:43,209 --> 00:10:45,478 And going down. The plane is uncontrollable. 178 00:10:45,544 --> 00:10:47,947 Keep your heads down. Stay down. 179 00:10:48,014 --> 00:10:49,415 Keep your heads down. 180 00:10:49,482 --> 00:10:50,850 Confirm people on board, 181 00:10:50,916 --> 00:10:54,086 intention and distance from NAVAID if it's possible. 182 00:10:54,153 --> 00:10:55,554 152 people on board. 183 00:10:55,621 --> 00:10:57,490 The plane is uncontrollable. 184 00:10:57,556 --> 00:11:01,193 In just 30 seconds the plane falls 9,000 feet. 185 00:11:03,696 --> 00:11:06,766 I understand 152 people on board. 186 00:11:06,832 --> 00:11:08,467 Affirmative. 187 00:11:08,534 --> 00:11:09,802 Acknowledge. 188 00:11:09,869 --> 00:11:11,904 Confirm at what level you are crossing at this time 189 00:11:11,971 --> 00:11:14,140 Whisky-Charlie.-Whisky. 190 00:11:20,679 --> 00:11:24,116 Whisky-Charlie.-whisky 708, 191 00:11:24,183 --> 00:11:27,286 confirm position if possible. 192 00:11:27,353 --> 00:11:32,358 Whisky-Charlie.-whisky 708, confirm position if possible. 193 00:11:35,628 --> 00:11:38,431 While flying over six miles above the earth, 194 00:11:38,497 --> 00:11:43,836 West Caribbean 708 mysteriously drops from the sky. 195 00:11:43,903 --> 00:11:47,740 Air traffic control in Venezuela doesn't know its location 196 00:11:47,807 --> 00:11:50,276 or if anyone has survived. 197 00:12:03,656 --> 00:12:06,392 The morning after West Caribbean flight 708 198 00:12:06,459 --> 00:12:08,928 goes missing, Venezuelan villagers report 199 00:12:08,994 --> 00:12:14,100 that a plane has crashed on a remote farm. 200 00:12:14,166 --> 00:12:17,103 Colonel Lorllys Ramos is the lead air crash investigator 201 00:12:17,169 --> 00:12:19,271 for the Venezuelan government. 202 00:12:19,338 --> 00:12:21,941 She has never handled a crash this big. 203 00:12:26,912 --> 00:12:29,415 She's shocked by what she sees. 204 00:12:29,482 --> 00:12:31,917 All 160 people on board, 205 00:12:31,984 --> 00:12:35,955 most of them french citizens from Martinique, have died. 206 00:12:43,162 --> 00:12:45,297 It was a real shock for us 207 00:12:45,364 --> 00:12:48,234 because it was our first really big accident. 208 00:12:48,300 --> 00:12:49,802 And it had the highest number of deaths 209 00:12:49,869 --> 00:12:52,738 for any crash in Venezuela. 210 00:12:52,805 --> 00:12:55,141 We felt a lot of pressure because of that. 211 00:12:58,410 --> 00:13:01,580 The scope of the investigation is daunting. 212 00:13:04,783 --> 00:13:07,620 Lorllys Ramos knows that the plane that has crashed 213 00:13:07,686 --> 00:13:10,156 is one of the safest planes in the world. 214 00:13:10,222 --> 00:13:14,026 There are more than 3,000 such planes flying every day. 215 00:13:16,929 --> 00:13:18,397 Investigating a crash 216 00:13:18,464 --> 00:13:21,600 where an aircraft so popular as the MD-80 217 00:13:21,667 --> 00:13:23,169 is a great responsibility 218 00:13:23,235 --> 00:13:27,139 because of the effects it could have on the rest of the fleet. 219 00:13:30,809 --> 00:13:32,411 The Colombian, Venezuelan 220 00:13:32,478 --> 00:13:34,113 and french press from Martinique 221 00:13:34,180 --> 00:13:37,283 all descend on the site demanding answers. 222 00:13:41,687 --> 00:13:44,056 The plane has crashed in a lawless area 223 00:13:44,123 --> 00:13:46,225 next to the Colombian border. 224 00:13:46,292 --> 00:13:48,661 Kidnappings are common. 225 00:13:51,330 --> 00:13:53,599 The Venezuelan army informs investigators 226 00:13:53,666 --> 00:13:57,870 that it can only protect them during daylight hours. 227 00:13:57,937 --> 00:13:59,071 We don't have a lot of time. 228 00:13:59,138 --> 00:14:00,906 Let's get everything documented... 229 00:14:04,043 --> 00:14:05,144 Certainly our team, 230 00:14:05,211 --> 00:14:06,412 including myself, 231 00:14:06,478 --> 00:14:08,981 wasn't prepared for the emergency we faced. 232 00:14:16,322 --> 00:14:17,957 This accident was complex. 233 00:14:18,023 --> 00:14:19,191 And it was very difficult 234 00:14:19,258 --> 00:14:22,127 to quickly figure out what had happened. 235 00:14:25,431 --> 00:14:27,466 After the victims have been removed, 236 00:14:27,533 --> 00:14:30,069 the investigators' first goal is to determine 237 00:14:30,135 --> 00:14:34,540 how much of the plane landed intact at the crash site. 238 00:14:34,607 --> 00:14:38,177 If it's all there, they can rule out a mid-air break-up. 239 00:14:44,717 --> 00:14:46,385 We could observe the four corners 240 00:14:46,452 --> 00:14:47,953 of the aircraft: 241 00:14:48,020 --> 00:14:52,458 The tail, a part of the cockpit and some remains of the wings. 242 00:14:52,524 --> 00:14:54,827 And this suggested that there were no explosions 243 00:14:54,893 --> 00:14:57,896 or a collision that produced the accident. 244 00:15:04,770 --> 00:15:06,071 Investigators question 245 00:15:06,138 --> 00:15:08,374 the Maiquetia air traffic controller. 246 00:15:08,440 --> 00:15:09,375 They told me that they had a flameout 247 00:15:09,441 --> 00:15:11,010 on both their engines. 248 00:15:11,076 --> 00:15:12,778 Do you have a problem on board? 249 00:15:12,845 --> 00:15:15,347 Tell him we've had a flameout on both engines. 250 00:15:21,654 --> 00:15:23,589 When we learned that the crew 251 00:15:23,656 --> 00:15:25,524 had reported a flameout in both engines, 252 00:15:25,591 --> 00:15:27,059 we immediately focused on the function 253 00:15:27,126 --> 00:15:29,728 of the airplane's engines. 254 00:15:33,899 --> 00:15:36,935 Yeah, I'm just getting up to speed now. 255 00:15:37,002 --> 00:15:38,937 Joe Sedor is a senior investigator 256 00:15:39,004 --> 00:15:41,140 at the NTSB in Washington 257 00:15:41,206 --> 00:15:44,043 specializing in foreign assignments. 258 00:15:44,109 --> 00:15:45,744 And as soon as we're notified of an accident, 259 00:15:45,811 --> 00:15:47,479 we contact the manufacturer 260 00:15:47,546 --> 00:15:50,149 of both the airframe and the engine. 261 00:15:50,215 --> 00:15:53,152 Given the initial information of a dual engine flameout, 262 00:15:53,218 --> 00:15:54,887 this caused us to start getting 263 00:15:54,953 --> 00:15:58,390 as much information about the engines as possible. 264 00:16:00,926 --> 00:16:04,129 No sign of fire inside the engine. 265 00:16:04,196 --> 00:16:06,832 Lorllys had her hands full with this accident. 266 00:16:06,899 --> 00:16:08,434 It was a remote location. 267 00:16:08,500 --> 00:16:10,836 There was four countries involved, 268 00:16:10,903 --> 00:16:13,339 and she didn't have a big staff. 269 00:16:15,140 --> 00:16:16,475 Let's see what we can find out 270 00:16:16,542 --> 00:16:19,545 about the weather they flew through. 271 00:16:19,611 --> 00:16:21,980 Colonel Ramos knows that severe storms 272 00:16:22,047 --> 00:16:25,784 can kill a plane's jet engines. 273 00:16:25,851 --> 00:16:29,922 In 1977 a DC-9 with similarly mounted rear engines 274 00:16:29,988 --> 00:16:35,027 experienced a flameout while flying through a thunderstorm. 275 00:16:35,094 --> 00:16:37,363 Both engines were disabled. 276 00:16:37,429 --> 00:16:39,732 The plane fell 17,000 feet, 277 00:16:39,798 --> 00:16:43,035 slammed to the ground and erupted in flames. 278 00:16:48,707 --> 00:16:51,910 Investigators suspect that the engines of flight 708 279 00:16:51,977 --> 00:16:53,045 may have flamed out 280 00:16:53,112 --> 00:16:56,048 either from heavy rain entering them 281 00:16:56,115 --> 00:16:58,917 or due to turbulent winds. 282 00:16:58,984 --> 00:17:00,886 One way to think of an engine flameout 283 00:17:00,953 --> 00:17:04,857 is when you have a pilot light go out on your furnace at home. 284 00:17:04,923 --> 00:17:07,126 The engine is working properly 285 00:17:07,192 --> 00:17:09,128 with combustion going on internally, 286 00:17:09,194 --> 00:17:12,564 and then the flame stops 287 00:17:12,631 --> 00:17:14,500 and the engine quits. 288 00:17:16,735 --> 00:17:18,804 If both engines flamed out, 289 00:17:18,871 --> 00:17:23,008 it would explain why the plane fell from the sky in one piece. 290 00:17:29,481 --> 00:17:30,749 But colonel Ramos knows 291 00:17:30,816 --> 00:17:32,418 that her best chance of finding out 292 00:17:32,484 --> 00:17:34,386 exactly what happened to the engines 293 00:17:34,453 --> 00:17:37,489 lies with the plane's two black boxes. 294 00:17:37,556 --> 00:17:41,760 They could hold critical flight and voice data. 295 00:17:41,827 --> 00:17:43,829 But retrieving that data gets complicated 296 00:17:43,896 --> 00:17:47,332 by political concerns. 297 00:17:47,399 --> 00:17:49,701 The other difficulty with this investigation 298 00:17:49,768 --> 00:17:51,670 was the international aspect. 299 00:17:51,737 --> 00:17:55,841 This was a Colombia operator that took off from Panama, 300 00:17:55,908 --> 00:17:59,011 was overflying Venezuela 301 00:17:59,077 --> 00:18:01,180 and crashed on their soil. 302 00:18:01,246 --> 00:18:03,782 So from the Venezuelan standpoint 303 00:18:03,849 --> 00:18:06,452 they had very little connection with the actual flight 304 00:18:06,518 --> 00:18:09,888 or the passengers on the aircraft. 305 00:18:09,955 --> 00:18:11,423 The Venezuelan government, 306 00:18:11,490 --> 00:18:13,826 deeply mistrustful of the United States, 307 00:18:13,892 --> 00:18:17,996 has the final say on who will examine the black boxes. 308 00:18:18,063 --> 00:18:21,366 Since this is a United States manufactured aircraft, 309 00:18:21,433 --> 00:18:23,302 we offered our facility to them 310 00:18:23,368 --> 00:18:26,371 to download both the FDR and CVR. 311 00:18:26,438 --> 00:18:28,607 But they requested that they be downloaded 312 00:18:28,674 --> 00:18:31,210 at the french facility of the BEA, 313 00:18:31,276 --> 00:18:34,179 our counterparts in Paris. 314 00:18:36,114 --> 00:18:37,749 The black boxes are sent to France 315 00:18:37,816 --> 00:18:39,351 for expert analysis. 316 00:18:40,819 --> 00:18:42,054 The French Aviation authorities 317 00:18:42,120 --> 00:18:44,456 participated in the accident investigation 318 00:18:44,523 --> 00:18:49,228 because all the passengers were french citizens 319 00:18:49,294 --> 00:18:51,363 that lived in Martinique. 320 00:19:00,873 --> 00:19:02,908 In the meantime, investigators pursue 321 00:19:02,975 --> 00:19:05,944 another possible cause of engine failure: 322 00:19:06,011 --> 00:19:08,780 Contaminated fuel. 323 00:19:08,847 --> 00:19:12,551 They track down the fuel truck that filled the plane in Panama. 324 00:19:16,054 --> 00:19:18,056 It was important to test the fuel 325 00:19:18,123 --> 00:19:21,493 because it was a possible cause for why the engines had failed. 326 00:19:29,334 --> 00:19:31,370 We asked the Panamanian authorities 327 00:19:31,436 --> 00:19:33,505 to test the fuel for contaminants, 328 00:19:33,572 --> 00:19:36,508 but the results they obtained were negative. 329 00:19:38,844 --> 00:19:41,847 Hi. I hope I can be of some help. 330 00:19:41,914 --> 00:19:43,916 Joe Sedor arrives from Washington 331 00:19:43,982 --> 00:19:46,718 with two engine experts. 332 00:19:46,785 --> 00:19:49,488 Once we arrived on scene, that was one of the first things 333 00:19:49,555 --> 00:19:52,524 that we wanted to look at was the engines. 334 00:19:52,591 --> 00:19:54,526 So my engine investigator 335 00:19:54,593 --> 00:19:57,229 and the Pratt and Whitney investigator 336 00:19:57,296 --> 00:20:01,633 went to each engine and examined them thoroughly. 337 00:20:01,700 --> 00:20:04,403 What they find is surprising. 338 00:20:04,469 --> 00:20:06,738 Both engines exhibited indications 339 00:20:06,805 --> 00:20:09,775 of high-speed rotation at impact. 340 00:20:09,841 --> 00:20:12,444 That is to say that the evidence indicated 341 00:20:12,511 --> 00:20:16,048 that both engines were operating at a very high power. 342 00:20:16,114 --> 00:20:17,482 The investigators give 343 00:20:17,549 --> 00:20:19,384 the engines a clean bill of health. 344 00:20:24,356 --> 00:20:26,158 When we obtained the analysts' results 345 00:20:26,224 --> 00:20:29,294 for the engines, we realized that they worked perfectly. 346 00:20:31,663 --> 00:20:33,131 You have a problem on board? 347 00:20:33,198 --> 00:20:34,600 Affirmative. 348 00:20:34,666 --> 00:20:36,702 Tell him we've had a flameout on both engines. 349 00:20:36,768 --> 00:20:39,137 We've had a flameout on both engines. 350 00:20:39,204 --> 00:20:40,439 It sure looks like those blades were turning 351 00:20:40,505 --> 00:20:43,108 when the plane hit the ground. 352 00:20:43,175 --> 00:20:45,310 And that the flameout reported by the crew 353 00:20:45,377 --> 00:20:47,245 never happened. 354 00:20:49,047 --> 00:20:50,582 The main suspect in the crash 355 00:20:50,649 --> 00:20:55,220 of one of the most popular planes on earth is ruled out. 356 00:20:55,287 --> 00:20:57,623 Investigators need another lead. 357 00:20:57,689 --> 00:21:01,159 It made us want to get that FDR and CVR data 358 00:21:01,226 --> 00:21:03,695 as quickly as possible. 359 00:21:03,762 --> 00:21:05,430 The team is now counting on 360 00:21:05,497 --> 00:21:06,698 the plane's two black boxes 361 00:21:06,765 --> 00:21:09,267 to shed light on the cause of the crash. 362 00:21:11,303 --> 00:21:15,807 They travel to France, where one of the boxes has been opened. 363 00:21:15,874 --> 00:21:18,543 When they listen to the plane's cockpit voice recorder, 364 00:21:18,610 --> 00:21:21,346 investigators are surprised by what they hear. 365 00:21:21,413 --> 00:21:24,016 It's a stall, captain! It's a stall! 366 00:21:25,984 --> 00:21:27,452 After listening to the 367 00:21:27,519 --> 00:21:28,754 cockpit voice recordings, 368 00:21:28,820 --> 00:21:31,823 we realized that the plane had entered a stall. 369 00:21:34,993 --> 00:21:36,962 How did this plane stall at over 30,000 feet 370 00:21:37,029 --> 00:21:40,399 with two working engines? 371 00:21:40,465 --> 00:21:42,768 To create the lift needed to fly, 372 00:21:42,834 --> 00:21:45,437 a plane depends on a very fast-moving stream of air 373 00:21:45,504 --> 00:21:46,905 over the wings. 374 00:21:46,972 --> 00:21:50,308 An airplane stall is when the lift over the wings 375 00:21:50,375 --> 00:21:52,377 is reduced to the point that the lift 376 00:21:52,444 --> 00:21:55,681 cannot support the weight of the aircraft in the air. 377 00:22:04,723 --> 00:22:06,491 It's unusual for planes to stall 378 00:22:06,558 --> 00:22:08,627 at such a high altitude. 379 00:22:08,694 --> 00:22:11,263 Investigators hope the plane's second black box 380 00:22:11,329 --> 00:22:13,598 will reveal why that happened. 381 00:22:19,404 --> 00:22:21,540 When we opened the flight data recorder, 382 00:22:21,606 --> 00:22:23,041 even though it was really damaged, 383 00:22:23,108 --> 00:22:26,778 the conditions inside were good, and that was a huge relief. 384 00:22:31,416 --> 00:22:32,784 But for some reason, 385 00:22:32,851 --> 00:22:36,988 much of what's on the recorder sounds like gibberish. 386 00:22:37,055 --> 00:22:41,059 Unfortunately some of the data was not usable. 387 00:22:44,596 --> 00:22:47,165 And it was some very important data points 388 00:22:47,232 --> 00:22:48,633 that were not available, 389 00:22:48,700 --> 00:22:53,672 such as elevator position, rudder position, heading, 390 00:22:53,739 --> 00:22:56,007 and the most important parameters, 391 00:22:56,074 --> 00:22:58,243 engine pressure ratios. 392 00:22:59,611 --> 00:23:04,649 It's a disappointing loss for Sedor. 393 00:23:04,716 --> 00:23:06,451 We need those engine parameters. 394 00:23:06,518 --> 00:23:08,954 The engine pressure numbers would tell investigators 395 00:23:09,020 --> 00:23:12,324 how much power the engines were generating. 396 00:23:12,390 --> 00:23:14,760 They would paint a picture of how the airplane was flying 397 00:23:14,826 --> 00:23:16,595 in its final minutes. 398 00:23:19,364 --> 00:23:23,001 In Washington the NTSB offers to help. 399 00:23:26,138 --> 00:23:28,640 Sophisticated software may be able to recapture 400 00:23:28,707 --> 00:23:31,476 some of the lost data. 401 00:23:31,543 --> 00:23:34,279 We wanted to work with what data we had 402 00:23:34,346 --> 00:23:37,983 to recover any engine data that we could. 403 00:23:38,049 --> 00:23:39,851 Meanwhile, investigators 404 00:23:39,918 --> 00:23:43,555 look for other clues about what may have caused the stall. 405 00:23:43,622 --> 00:23:47,292 That's quite a storm, probably very heavy rain. 406 00:23:47,359 --> 00:23:48,860 They discover that the plane flew 407 00:23:48,927 --> 00:23:53,965 through freezing, wet weather capable of causing ice to form. 408 00:23:54,032 --> 00:23:58,136 Ice on the wings can cause a plane to stall. 409 00:23:58,203 --> 00:24:00,071 When ice accumulates on an airplane, 410 00:24:00,138 --> 00:24:02,007 it will have increased drag 411 00:24:02,073 --> 00:24:05,143 and increased weight and decreased lift. 412 00:24:05,210 --> 00:24:09,681 The MD-80 is equipped with an anti-icing system. 413 00:24:09,748 --> 00:24:14,019 When turned on it blows hot air from the engines onto the wings, 414 00:24:14,085 --> 00:24:16,354 preventing ice from forming. 415 00:24:20,692 --> 00:24:23,995 Let's see what they did about the ice. 416 00:24:25,297 --> 00:24:28,500 Put on the fasten seatbelt sign. 417 00:24:28,567 --> 00:24:31,069 Man, that is a lot of nasty weather. 418 00:24:31,136 --> 00:24:33,805 As the plane rose to 33,000 feet, 419 00:24:33,872 --> 00:24:37,909 Captain Ospina made an unusual decision. 420 00:24:37,976 --> 00:24:40,145 Turn off engine anti-icing. 421 00:24:43,782 --> 00:24:46,051 A short while later First Officer Muñoz 422 00:24:46,117 --> 00:24:50,856 wants to know if the anti-icing system should be turned back on. 423 00:24:50,922 --> 00:24:52,591 Should I turn it on, captain? 424 00:24:52,657 --> 00:24:54,092 Do we have ice? 425 00:24:58,129 --> 00:24:59,464 Pilots generally 426 00:24:59,531 --> 00:25:01,633 examine the outside metal windowsill 427 00:25:01,700 --> 00:25:04,236 to see whether ice is forming there. 428 00:25:06,671 --> 00:25:08,273 Put 'em on. 429 00:25:08,340 --> 00:25:12,077 It appears the captain saw ice. 430 00:25:12,143 --> 00:25:15,113 Since they were flying through cold and wet conditions, 431 00:25:15,180 --> 00:25:16,948 investigators don't know why the crew 432 00:25:17,015 --> 00:25:19,651 didn't simply turn on the anti-icing system 433 00:25:19,718 --> 00:25:23,154 and leave it on. 434 00:25:23,221 --> 00:25:25,090 With the weather conditions they had, 435 00:25:25,156 --> 00:25:26,892 they should have been using the anti-ice systems 436 00:25:26,958 --> 00:25:29,194 during the entire flight. 437 00:25:31,429 --> 00:25:34,232 Investigators wonder if the crew made an error 438 00:25:34,299 --> 00:25:37,002 that allowed ice to build up on the plane's wings, 439 00:25:37,068 --> 00:25:40,405 causing it to stall and fall from the sky. 440 00:25:47,879 --> 00:25:49,080 Promising new evidence 441 00:25:49,147 --> 00:25:51,850 in the crash of West Caribbean flight 708 442 00:25:51,917 --> 00:25:53,518 may help the investigative team 443 00:25:53,585 --> 00:25:56,955 to zero in on the cause of the disaster. 444 00:26:01,226 --> 00:26:04,062 The NTSB has managed to recover missing data 445 00:26:04,129 --> 00:26:06,564 about the MD-80's engines. 446 00:26:12,837 --> 00:26:14,205 This was very important for us 447 00:26:14,272 --> 00:26:16,474 because it allowed us to understand the operation 448 00:26:16,541 --> 00:26:19,177 of the engine throughout the flight. 449 00:26:19,244 --> 00:26:21,046 If there had been ice on the wings, 450 00:26:21,112 --> 00:26:22,781 the engines would have had to work harder 451 00:26:22,847 --> 00:26:25,917 to overcome the friction it creates. 452 00:26:25,984 --> 00:26:28,853 The engine power numbers would have gone up. 453 00:26:28,920 --> 00:26:30,689 Look at this. 454 00:26:30,755 --> 00:26:35,293 Engine power wasn't going up, it was actually going down. 455 00:26:35,360 --> 00:26:36,461 Therefore that showed 456 00:26:36,528 --> 00:26:40,465 that there was no ice on the airframe. 457 00:26:40,532 --> 00:26:44,703 Ice didn't cause the stall. 458 00:26:44,769 --> 00:26:48,173 So what did? 459 00:26:48,239 --> 00:26:50,675 Investigators must determine why the engines 460 00:26:50,742 --> 00:26:52,744 weren't providing the power needed 461 00:26:52,811 --> 00:26:54,813 to keep the MD-80 in the air. 462 00:26:59,551 --> 00:27:02,520 The airline's troubled history of safety violations 463 00:27:02,587 --> 00:27:05,991 gives investigators a possible lead. 464 00:27:06,057 --> 00:27:09,995 It had been cited for flying overweight planes. 465 00:27:10,061 --> 00:27:12,530 Colombian authorities used to bring the aircraft 466 00:27:12,597 --> 00:27:15,633 to a scale they have at Bogota Airport 467 00:27:15,700 --> 00:27:17,502 and compare against the manifest. 468 00:27:17,569 --> 00:27:21,373 And on some occasions they found that the aircraft was heavier 469 00:27:21,439 --> 00:27:24,943 than what was reported. 470 00:27:25,010 --> 00:27:27,545 Did flight 708 stall in mid-air 471 00:27:27,612 --> 00:27:29,247 because it was too heavy? 472 00:27:32,350 --> 00:27:33,885 During our visit to Panama, 473 00:27:33,952 --> 00:27:35,787 we observed that West Caribbean 474 00:27:35,854 --> 00:27:37,655 didn't have very rigorous control 475 00:27:37,722 --> 00:27:41,393 over the checking of passengers' luggage and their weight. 476 00:27:43,762 --> 00:27:45,263 If a plane is too heavy, 477 00:27:45,330 --> 00:27:47,966 it may not be able to fly at higher altitudes 478 00:27:48,033 --> 00:27:50,135 where the air is less dense. 479 00:27:54,839 --> 00:27:58,076 Pilots need to make these calculations carefully. 480 00:28:05,183 --> 00:28:06,885 The pilot knows at what altitude 481 00:28:06,951 --> 00:28:10,188 he can fly by studying the aircraft's performance tables 482 00:28:10,255 --> 00:28:13,258 and inputting the plane's weight and the temperature. 483 00:28:15,226 --> 00:28:16,895 What investigators don't know 484 00:28:16,961 --> 00:28:19,964 is whether Captain Ospina did the math correctly. 485 00:28:20,031 --> 00:28:23,268 Stand by. 486 00:28:23,334 --> 00:28:26,037 They now try to calculate whether flight 708 487 00:28:26,104 --> 00:28:30,608 was too heavy to avoid stalling at 33,000 feet. 488 00:28:30,675 --> 00:28:31,876 So we went back and looked 489 00:28:31,943 --> 00:28:34,979 at the number of passengers on board, 490 00:28:35,046 --> 00:28:36,614 the number of crew on board 491 00:28:36,681 --> 00:28:41,786 and the weight of the aircraft itself along with the baggage. 492 00:28:41,853 --> 00:28:43,388 They already tested the plane 493 00:28:43,455 --> 00:28:47,225 at its reported weight of 148,000 pounds. 494 00:28:47,292 --> 00:28:49,894 Alright, let's add a few thousand pounds: 495 00:28:49,961 --> 00:28:54,232 Heavier luggage, mis-weighed cargo. 496 00:28:56,568 --> 00:28:59,504 Uh, let's try 155,000 pounds. 497 00:29:00,839 --> 00:29:02,941 Investigators now make the calculations 498 00:29:03,007 --> 00:29:05,677 for a plane that's grossly overweight. 499 00:29:07,812 --> 00:29:09,881 They're in for a surprise. 500 00:29:09,948 --> 00:29:13,518 And even with a heavier aircraft at takeoff, 501 00:29:13,585 --> 00:29:18,189 the aircraft could maintain level flight at 3-3-0. 502 00:29:18,256 --> 00:29:21,459 It's a setback for the investigation. 503 00:29:21,526 --> 00:29:24,596 We're missing something. 504 00:29:24,662 --> 00:29:27,265 Let's go back to the beginning. 505 00:29:30,835 --> 00:29:32,170 After much research, 506 00:29:32,237 --> 00:29:34,372 investigators still can't figure out 507 00:29:34,439 --> 00:29:37,008 what caused the plane to stall. 508 00:29:43,114 --> 00:29:45,617 Thanks. 509 00:29:45,683 --> 00:29:47,085 The answer has to do with 510 00:29:47,152 --> 00:29:49,354 how a plane distributes power. 511 00:29:54,893 --> 00:29:56,227 When it's turned on, 512 00:29:56,294 --> 00:29:59,364 the anti-icing system draws energy from the engines, 513 00:29:59,430 --> 00:30:01,699 reducing power for thrust. 514 00:30:01,766 --> 00:30:02,934 This decrease in thrust 515 00:30:03,001 --> 00:30:04,402 can affect the performance of the airplane 516 00:30:04,469 --> 00:30:06,804 depending on the weight and the altitude. 517 00:30:06,871 --> 00:30:08,306 So the performance study showed 518 00:30:08,373 --> 00:30:10,808 that the airplane was perfectly safe to fly at 33,000 feet 519 00:30:10,875 --> 00:30:12,410 with the anti-ice off. 520 00:30:12,477 --> 00:30:14,846 Anti-ice on, please. 521 00:30:14,913 --> 00:30:18,316 However, it could only fly as high as 31,900 feet 522 00:30:18,383 --> 00:30:21,519 with the anti-ice on. 523 00:30:21,586 --> 00:30:24,022 It was the anti-icing. 524 00:30:24,088 --> 00:30:26,324 It robbed them of the power they needed. 525 00:30:29,160 --> 00:30:32,463 They shouldn't have gone higher than 31-9. 526 00:30:42,407 --> 00:30:43,942 We concluded that the aircraft 527 00:30:44,008 --> 00:30:45,610 was flown too high for its weight 528 00:30:45,677 --> 00:30:48,246 and the weather conditions it faced. 529 00:30:53,117 --> 00:30:54,285 Put 'em on. 530 00:30:54,352 --> 00:30:55,687 The airspeed started to decelerate 531 00:30:55,753 --> 00:30:58,590 when the flight crew turned on the anti-ice system. 532 00:30:58,656 --> 00:31:01,659 This reduced the thrust of the engine. 533 00:31:01,726 --> 00:31:04,596 Investigators conclude the reduction in thrust 534 00:31:04,662 --> 00:31:06,731 led the plane to stall. 535 00:31:06,798 --> 00:31:09,801 Sir, we just got the final load sheet. 536 00:31:09,867 --> 00:31:12,036 They now assume that when Captain Ospina 537 00:31:12,103 --> 00:31:14,772 calculated his maximum cruise altitude, 538 00:31:14,839 --> 00:31:18,977 he failed to factor in the need for anti-icing. 539 00:31:19,043 --> 00:31:20,245 There are many factors 540 00:31:20,311 --> 00:31:22,180 you have to take into account when planning, 541 00:31:22,247 --> 00:31:25,083 and apparently, they did not do it in this case. 542 00:31:25,149 --> 00:31:27,652 But if low thrust led to a stall, 543 00:31:27,719 --> 00:31:30,588 why didn't the crew notice? 544 00:31:30,655 --> 00:31:33,558 Part of the answer is that while the problem was developing, 545 00:31:33,625 --> 00:31:37,762 they weren't flying the plane. 546 00:31:37,829 --> 00:31:39,897 They had their autopilot on. 547 00:31:43,167 --> 00:31:46,871 The autopilot should not let a plane stall. 548 00:31:46,938 --> 00:31:49,607 Investigators wonder why this particular autopilot 549 00:31:49,674 --> 00:31:51,309 let that happen. 550 00:31:59,784 --> 00:32:02,754 While researching the autopilot on the MD-80, 551 00:32:02,820 --> 00:32:04,522 investigators discover a bulletin 552 00:32:04,589 --> 00:32:07,592 from the plane's manufacturer. 553 00:32:07,659 --> 00:32:12,230 It was sent to the airline three years earlier. 554 00:32:12,297 --> 00:32:13,464 "Under some conditions 555 00:32:13,531 --> 00:32:15,800 airspeed could decay to stall warning 556 00:32:15,867 --> 00:32:17,969 before the autopilot disconnects." 557 00:32:21,673 --> 00:32:23,207 In the bulletin issued by Boeing 558 00:32:23,274 --> 00:32:25,677 it described another incident with an autopilot 559 00:32:25,743 --> 00:32:27,145 that was almost the exact same 560 00:32:27,211 --> 00:32:29,947 as what had happened with West Caribbean . 561 00:32:31,482 --> 00:32:32,917 The bulletin warned crews 562 00:32:32,984 --> 00:32:34,519 that if they set the autopilot 563 00:32:34,585 --> 00:32:36,754 to maintain the plane's altitude, 564 00:32:36,821 --> 00:32:39,724 they should keep a close eye on their airspeed. 565 00:32:39,791 --> 00:32:41,092 The operation bulletin warned 566 00:32:41,159 --> 00:32:45,163 that with the autopilot on and at altitude 567 00:32:45,229 --> 00:32:47,932 that a similar situation could occur 568 00:32:47,999 --> 00:32:50,468 where the aircraft could maintain altitude 569 00:32:50,535 --> 00:32:53,104 and airspeed could decrease 570 00:32:53,171 --> 00:32:56,741 if the pilots were not monitoring the airspeed. 571 00:32:56,808 --> 00:32:59,110 So in order to maintain altitude 572 00:32:59,177 --> 00:33:01,479 as the speed goes down 573 00:33:01,546 --> 00:33:05,116 the aircraft starts to pitch up, nose up attitude, 574 00:33:05,183 --> 00:33:07,251 increasing the angle of attack 575 00:33:07,318 --> 00:33:10,455 to have a better lift. 576 00:33:10,521 --> 00:33:14,926 But that has a problem because you cannot exceed certain angle 577 00:33:14,992 --> 00:33:18,629 because you can enter a stall condition. 578 00:33:20,798 --> 00:33:22,700 In this case the autopilot led the aircraft 579 00:33:22,767 --> 00:33:26,003 into a condition that caused an excessive angle of attack. 580 00:33:26,070 --> 00:33:28,940 That generated the stall. 581 00:33:30,508 --> 00:33:32,610 As important as the bulletin was, 582 00:33:32,677 --> 00:33:37,115 there's no evidence that it ever reached West Caribbean pilots. 583 00:33:39,150 --> 00:33:41,552 Investigators now have a deeper understanding 584 00:33:41,619 --> 00:33:44,389 of the events causing the stall. 585 00:33:44,455 --> 00:33:46,891 The crew wasn't monitoring their instruments, 586 00:33:46,958 --> 00:33:48,192 believing that the autopilot 587 00:33:48,259 --> 00:33:50,561 would maintain the correct speed. 588 00:33:50,628 --> 00:33:53,564 They were wrong. 589 00:33:53,631 --> 00:33:56,000 It was at this moment that the captain began to notice 590 00:33:56,067 --> 00:33:57,802 that something wasn't right. 591 00:33:57,869 --> 00:33:59,337 I can't accelerate. 592 00:33:59,404 --> 00:34:00,772 I'm going to the bathroom. 593 00:34:00,838 --> 00:34:03,341 They were aware that they had a problem, 594 00:34:03,408 --> 00:34:05,443 but they didn't know why. 595 00:34:09,647 --> 00:34:11,783 The captain decided to descend to an altitude 596 00:34:11,849 --> 00:34:15,186 where the engines would perform better. 597 00:34:15,253 --> 00:34:18,322 And descending to 31,000 feet was the right choice. 598 00:34:18,389 --> 00:34:20,291 That's why he disconnected the autopilot 599 00:34:20,358 --> 00:34:22,126 to begin the descent. 600 00:34:22,193 --> 00:34:23,961 Give me 3-1-0. 601 00:34:24,028 --> 00:34:26,397 The plane is very close to stalling. 602 00:34:26,464 --> 00:34:28,032 But the crew is just seconds away 603 00:34:28,099 --> 00:34:30,935 from overcoming the problem. 604 00:34:31,002 --> 00:34:35,773 If he would have attained 31,000 feet during that descent, 605 00:34:35,840 --> 00:34:37,775 the speed would have gone up 606 00:34:37,842 --> 00:34:41,012 and he would have recovered the lift. 607 00:34:41,078 --> 00:34:42,914 And after leveling off 608 00:34:42,980 --> 00:34:46,851 there would have been no problem at all. 609 00:34:46,918 --> 00:34:48,986 They almost made it. 610 00:34:49,053 --> 00:34:53,491 But the captain was oblivious to his biggest threat. 611 00:34:53,558 --> 00:34:55,426 The plane is still traveling slowly 612 00:34:55,493 --> 00:35:00,398 with its nose raised at a dangerously high angle. 613 00:35:00,465 --> 00:35:03,334 That's when the crew experienced some bad luck. 614 00:35:03,401 --> 00:35:06,003 The weather they were flying through was turbulent. 615 00:35:06,070 --> 00:35:09,674 Winds were intense and the plane was vulnerable. 616 00:35:09,740 --> 00:35:11,209 Our study showed that it would only take 617 00:35:11,275 --> 00:35:15,313 a 20-mile-an-hour updraft to push the aircraft into a stall. 618 00:35:17,215 --> 00:35:19,517 Investigators conclude that the plane was hit 619 00:35:19,584 --> 00:35:23,821 with a ferocious updraft that lifted the plane's nose 620 00:35:23,888 --> 00:35:27,391 just enough to put it into a stall-- 621 00:35:27,458 --> 00:35:30,228 a crisis the crew then mishandled. 622 00:35:32,163 --> 00:35:33,297 There was very little 623 00:35:33,364 --> 00:35:34,565 communication between them. 624 00:35:34,632 --> 00:35:36,434 The captain thought he was having a flameout 625 00:35:36,501 --> 00:35:38,369 in both engines. 626 00:35:39,971 --> 00:35:43,674 Tell him we've had a flameout, both engines. 627 00:35:43,741 --> 00:35:44,842 We have... 628 00:35:44,909 --> 00:35:46,444 We have a flameout on both our engines. 629 00:35:46,511 --> 00:35:49,013 The captain was not telling the first officer 630 00:35:49,080 --> 00:35:50,915 what to do. 631 00:35:50,982 --> 00:35:53,651 The captain was only fixating, 632 00:35:53,718 --> 00:35:58,256 or, if you will, have tunnel vision, on the engines, 633 00:35:58,322 --> 00:36:01,526 which is a very big problem in this situation. 634 00:36:06,063 --> 00:36:08,699 As the investigation into the crash of flight 708 635 00:36:08,766 --> 00:36:13,137 nears completion, only one mystery remains unsolved. 636 00:36:13,204 --> 00:36:15,506 It's a stall. 637 00:36:15,573 --> 00:36:17,608 Muñoz seems to know what was happening. 638 00:36:17,675 --> 00:36:20,111 Why did the crew fail to recover from a stall 639 00:36:20,177 --> 00:36:22,380 that they'd been trained to overcome? 640 00:36:22,446 --> 00:36:23,714 To get out of a stall 641 00:36:23,781 --> 00:36:27,151 a pilot should increase thrust and pitch over, 642 00:36:27,218 --> 00:36:29,520 that is, push forward on the control column. 643 00:36:29,587 --> 00:36:31,923 But as the recovered flight data shows, 644 00:36:31,989 --> 00:36:34,559 that's not what Captain Ospina did. 645 00:36:34,625 --> 00:36:35,960 There is no indication 646 00:36:36,027 --> 00:36:37,795 that the pilot pushed forward on the control column 647 00:36:37,862 --> 00:36:41,699 to reduce the angle of attack and to increase speed. 648 00:36:44,435 --> 00:36:47,772 He's pulling back on the control column. 649 00:36:47,838 --> 00:36:49,407 At that point it was impossible 650 00:36:49,473 --> 00:36:50,875 to recover from the stall. 651 00:36:50,942 --> 00:36:54,178 The captain should have pushed forward. 652 00:36:54,245 --> 00:36:58,149 The question remains: Why didn't he? 653 00:37:00,618 --> 00:37:02,453 Investigators get their first clue 654 00:37:02,520 --> 00:37:04,288 when they re-examine the engine data 655 00:37:04,355 --> 00:37:07,058 at the precise moment of the stall. 656 00:37:07,124 --> 00:37:10,494 That's what distracted the captain. 657 00:37:10,561 --> 00:37:12,296 At the time that the airplane stalled, 658 00:37:12,363 --> 00:37:17,168 we also saw that both engines rolled back at the same time. 659 00:37:17,234 --> 00:37:20,738 This most likely confused the pilots. 660 00:37:20,805 --> 00:37:23,407 When airflow to the engines is disrupted, 661 00:37:23,474 --> 00:37:28,746 it causes a rollback, reducing thrust. 662 00:37:28,813 --> 00:37:31,482 Because of the updrafts in the area, 663 00:37:31,549 --> 00:37:33,150 it most likely increased the angle of attack 664 00:37:33,217 --> 00:37:34,785 of the engine inlet, 665 00:37:34,852 --> 00:37:37,355 which then caused the engines to roll back. 666 00:37:37,421 --> 00:37:39,924 With his engine power temporarily reduced, 667 00:37:39,991 --> 00:37:43,594 the captain wrongly concluded that his engines had quit. 668 00:37:43,661 --> 00:37:44,595 It's a stall! 669 00:37:44,662 --> 00:37:45,796 The first officer yelled: 670 00:37:45,863 --> 00:37:47,965 It's a stall, cappy, it's a stall. 671 00:37:51,302 --> 00:37:54,438 There was no response from the captain. 672 00:37:54,505 --> 00:37:55,573 This showed that the captain 673 00:37:55,640 --> 00:37:58,743 was fixating most likely on the engines. 674 00:37:58,809 --> 00:38:01,012 Unaware he had stalled, 675 00:38:01,078 --> 00:38:02,680 the captain made things worse 676 00:38:02,747 --> 00:38:04,715 by pulling back on his control column. 677 00:38:04,782 --> 00:38:09,320 That kept the nose of the plane angled dangerously high. 678 00:38:09,387 --> 00:38:12,323 Tell him we've had a flameout on both engines. 679 00:38:12,390 --> 00:38:15,126 We've had a flameout on both engines. 680 00:38:15,192 --> 00:38:16,527 The crew couldn't understand 681 00:38:16,594 --> 00:38:19,263 the situation presented to them. 682 00:38:19,330 --> 00:38:22,400 West 708, go down to level 2-4-0. 683 00:38:22,466 --> 00:38:24,001 Do you have a problem on board? 684 00:38:24,068 --> 00:38:26,671 We've had a flameout on both engines. 685 00:38:26,737 --> 00:38:29,507 They had a heavy buffet from the stall. 686 00:38:29,573 --> 00:38:32,576 They were looking at the engines which were rolled back, 687 00:38:32,643 --> 00:38:35,913 and they were also communicating with the air traffic controller. 688 00:38:35,980 --> 00:38:39,417 During that time there was not much troubleshooting going on 689 00:38:39,483 --> 00:38:40,818 in the cockpit. 690 00:38:40,885 --> 00:38:45,222 This was a very, very difficult time for the pilot. 691 00:38:45,289 --> 00:38:46,624 It is very important 692 00:38:46,691 --> 00:38:51,796 that the crews communicate in an effective way. 693 00:38:51,862 --> 00:38:54,265 And in this case you don't hear 694 00:38:54,331 --> 00:38:57,168 the two pilots communicating between themselves. 695 00:39:02,106 --> 00:39:04,675 It was an almost silent cockpit 696 00:39:04,742 --> 00:39:07,778 until the time just before the accident 697 00:39:07,845 --> 00:39:10,881 when they realized they were in deep trouble. 698 00:39:16,387 --> 00:39:19,490 But by that time it was already too late. 699 00:39:19,557 --> 00:39:24,395 They were past the point of no return. 700 00:39:24,462 --> 00:39:25,796 During that descent, 701 00:39:25,863 --> 00:39:27,898 according to the flight data recorder, 702 00:39:27,965 --> 00:39:29,934 they reached a rate of descent 703 00:39:30,000 --> 00:39:34,905 an average of more than 12,000 feet per minute. 704 00:39:34,972 --> 00:39:38,509 At that rate of descent, not only the G-force 705 00:39:38,576 --> 00:39:41,579 will prevent them from any coordinated action, 706 00:39:41,645 --> 00:39:47,151 the vibration in the aircraft would be a lot. 707 00:39:47,218 --> 00:39:49,353 That's why when you hear the voice recorder, 708 00:39:49,420 --> 00:39:51,355 you hear the voice trembling. 709 00:39:51,422 --> 00:39:52,923 Negative! Negative! 710 00:39:52,990 --> 00:39:55,526 - We are at 14,000 feet. - We're about 14,000. 711 00:39:55,593 --> 00:39:57,661 We're going down. The plane is uncontrollable. 712 00:39:57,728 --> 00:40:01,398 And that's because of high vibration in the aircraft. 713 00:40:03,334 --> 00:40:05,503 For everyone on board, 714 00:40:05,569 --> 00:40:10,841 the final plunge was a nightmare lasting almost three minutes. 715 00:40:20,284 --> 00:40:21,919 Whisky-Charlie.-whisky... 716 00:40:25,222 --> 00:40:27,158 When colonel Lorllys Ramos and her team 717 00:40:27,224 --> 00:40:29,093 interview friends and family of the pilots 718 00:40:29,160 --> 00:40:31,028 of West Caribbean flight 708... 719 00:40:31,095 --> 00:40:32,763 How was he when he was at home? 720 00:40:32,830 --> 00:40:34,932 ...they uncover other longstanding issues 721 00:40:34,999 --> 00:40:37,802 that may help explain the crew's behavior. 722 00:40:37,868 --> 00:40:39,403 West Caribbean Airline 723 00:40:39,470 --> 00:40:44,575 was going through a very critical financial status. 724 00:40:50,281 --> 00:40:51,515 Because of West Caribbean's 725 00:40:51,582 --> 00:40:52,850 economic struggles, 726 00:40:52,917 --> 00:40:56,086 the crew members hadn't been paid for six months. 727 00:40:58,956 --> 00:41:01,926 And this could have influenced the captain's concentration. 728 00:41:08,966 --> 00:41:11,502 Investigators discover that Captain Ospina 729 00:41:11,569 --> 00:41:14,839 was forced to take a second job moonlighting in a bar 730 00:41:14,905 --> 00:41:17,374 in order to make ends meet for his family. 731 00:41:20,778 --> 00:41:21,812 The level of stress 732 00:41:21,879 --> 00:41:23,080 that the captain was under 733 00:41:23,147 --> 00:41:25,983 because of his financial situation was huge. 734 00:41:28,319 --> 00:41:30,087 Have we solved the fuel situation yet? 735 00:41:30,154 --> 00:41:32,022 I think we're getting close, captain. 736 00:41:32,089 --> 00:41:33,290 Before the accident 737 00:41:33,357 --> 00:41:35,593 the crew was delayed in Colombia for hours 738 00:41:35,659 --> 00:41:38,629 because the airline couldn't pay for their fuel. 739 00:41:38,696 --> 00:41:42,199 That was their third of four flights that day. 740 00:41:44,335 --> 00:41:46,303 The crew was under a lot of stress 741 00:41:46,370 --> 00:41:47,805 because they were already late 742 00:41:47,872 --> 00:41:51,008 and they didn't know if their flight would be canceled. 743 00:41:55,446 --> 00:41:57,615 It's a stall, captain! 744 00:41:57,681 --> 00:41:59,783 It's a stall! 745 00:41:59,850 --> 00:42:01,552 Investigators also believe 746 00:42:01,619 --> 00:42:03,254 that the 21-year-old first officer 747 00:42:03,320 --> 00:42:05,890 should have voiced his opinions more clearly. 748 00:42:08,058 --> 00:42:10,127 There was a considerable age difference 749 00:42:10,194 --> 00:42:12,363 between the captain and the copilot, 750 00:42:12,429 --> 00:42:14,265 and this might have intimidated the copilot 751 00:42:14,331 --> 00:42:18,402 when he needed to speak up. 752 00:42:18,469 --> 00:42:20,037 Do I turn it on, captain? 753 00:42:20,104 --> 00:42:23,040 Do we have ice? 754 00:42:23,107 --> 00:42:24,675 No matter how young 755 00:42:24,742 --> 00:42:28,112 the copilots and the first officers are, 756 00:42:28,178 --> 00:42:32,783 how old and experienced the captain is, 757 00:42:32,850 --> 00:42:36,520 they have the right to preserve their life 758 00:42:36,587 --> 00:42:39,623 if they see something that's going wrong. 759 00:42:39,690 --> 00:42:41,358 It's a stall, captain! 760 00:42:41,425 --> 00:42:42,860 It's a stall! 761 00:42:42,927 --> 00:42:46,697 And they alert the captain and he does not react, 762 00:42:46,764 --> 00:42:49,566 they should react by themselves. 763 00:42:54,271 --> 00:42:56,807 The investigation's official report concludes 764 00:42:56,874 --> 00:43:00,244 that there was an insufficient level of situational awareness 765 00:43:00,311 --> 00:43:03,180 in both pilots. 766 00:43:03,247 --> 00:43:04,715 Although the pilot's actions 767 00:43:04,782 --> 00:43:06,383 are in question in this flight, 768 00:43:06,450 --> 00:43:09,153 we also have to look at the operator. 769 00:43:09,219 --> 00:43:11,388 Did the operator provide proper training? 770 00:43:11,455 --> 00:43:13,891 We found that the training was insufficient, 771 00:43:13,958 --> 00:43:16,093 that they did not receive proper CRM training, 772 00:43:16,160 --> 00:43:18,162 and they did not receive proper stall training. 773 00:43:27,404 --> 00:43:28,706 This accident happened 774 00:43:28,772 --> 00:43:30,074 as a result of numerous factors 775 00:43:30,140 --> 00:43:34,078 that aren't only attributable to the crew. 776 00:43:34,144 --> 00:43:38,582 There were deplorable conditions in the operation of the airline. 777 00:43:38,649 --> 00:43:41,785 And over time, these faults can lead to accidents. 778 00:43:49,460 --> 00:43:51,762 - Negative! Negative! - We're at 14,000 feet. 779 00:43:51,829 --> 00:43:54,732 -We're going down. -The plane is uncontrollable. 780 00:43:54,798 --> 00:43:57,201 The report makes a long list of recommendations 781 00:43:57,267 --> 00:44:01,405 to ensure that the tragedy of flight 708 never happens again. 782 00:44:08,345 --> 00:44:10,514 We made recommendations 783 00:44:10,581 --> 00:44:12,149 to the Colombian Aviation authorities 784 00:44:12,216 --> 00:44:14,385 to improve pilot training. 785 00:44:14,451 --> 00:44:17,287 Specifically, better training in crew communication 786 00:44:17,354 --> 00:44:18,722 and having a better awareness 787 00:44:18,789 --> 00:44:21,658 about the use of the plane's autopilot. 788 00:44:28,065 --> 00:44:29,600 After this accident occurred, 789 00:44:29,666 --> 00:44:32,836 the airline was grounded and it never operated again. 790 00:44:32,903 --> 00:44:38,042 It went bankrupt and simply disappeared. 791 00:44:38,108 --> 00:44:39,843 But West Caribbean Airways 792 00:44:39,910 --> 00:44:43,714 did leave a valuable legacy-- 793 00:44:43,781 --> 00:44:45,082 better safety measures 794 00:44:45,149 --> 00:44:46,550 for every other MD-80 795 00:44:46,617 --> 00:44:48,719 taking to the skies today. 60626

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