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These are the user uploaded subtitles that are being translated: 1 00:00:17,391 --> 00:00:19,853 - I remember being amazed how quickly 2 00:00:19,936 --> 00:00:21,437 the accident took place. 3 00:00:21,562 --> 00:00:23,440 They were flying and the next thing you know, 4 00:00:23,565 --> 00:00:24,440 the airplane's lost. 5 00:00:28,236 --> 00:00:29,696 Midwest Express Flight 1-0-5 6 00:00:29,821 --> 00:00:32,865 crashes seconds after taking off from Milwaukee, Wisconsin. 7 00:00:32,948 --> 00:00:36,036 All 31 people on board are killed. 8 00:00:36,118 --> 00:00:38,204 And what do you say to the public 9 00:00:38,329 --> 00:00:40,247 about the crashes that we've been having? 10 00:00:40,914 --> 00:00:43,710 1985 becomes one of the deadliest years 11 00:00:43,835 --> 00:00:45,128 in civil aviation. 12 00:00:45,253 --> 00:00:48,381 It's up to investigators to put the public at ease. 13 00:00:48,506 --> 00:00:51,259 - This is how the plane hit the ground. 14 00:00:51,759 --> 00:00:53,261 When they examine the engines, 15 00:00:53,386 --> 00:00:56,014 they find a component prone to failure. 16 00:00:56,805 --> 00:00:58,557 Well, when we had heard that this part 17 00:00:58,640 --> 00:01:02,896 had failed 45 times before, that's a big deal. 18 00:01:03,563 --> 00:01:06,566 But the flight data turns the investigation on its head. 19 00:01:06,649 --> 00:01:09,736 - So the ruptured right engine didn't bring down this plane. 20 00:01:09,819 --> 00:01:11,905 - It did not. 21 00:01:11,987 --> 00:01:14,490 - Mayday! Mayday! 22 00:01:34,593 --> 00:01:36,930 There are 27 passengers boarding 23 00:01:37,013 --> 00:01:39,724 Midwest Express Airlines Flight 1-0-5, 24 00:01:39,808 --> 00:01:43,644 a commuter flight from Milwaukee, to Atlanta. 25 00:01:43,769 --> 00:01:44,978 Many are employees 26 00:01:45,105 --> 00:01:47,397 of the manufacturer Kimberley Clark. 27 00:01:48,816 --> 00:01:51,528 - Midwest Express Airlines used the slogan: 28 00:01:51,653 --> 00:01:53,780 "Best Care in the Air," and they really meant it 29 00:01:53,862 --> 00:01:58,034 because they had as close to an all-business aircraft 30 00:01:58,159 --> 00:01:59,284 as you could have. 31 00:02:00,912 --> 00:02:02,621 - Treats for when we're airborne. 32 00:02:04,498 --> 00:02:08,627 - And they also baked fresh cookies on board 33 00:02:08,752 --> 00:02:12,173 and made the place smell amazing when you walked on. 34 00:02:14,842 --> 00:02:19,139 - Midex 1-0-5 requesting IFR clearance to Atlanta. 35 00:02:20,348 --> 00:02:22,808 Both pilots on this flight are captains 36 00:02:22,891 --> 00:02:24,185 with the airline. 37 00:02:24,310 --> 00:02:26,770 They've already flown two flights together today. 38 00:02:31,234 --> 00:02:32,860 - Midex 1-0-5, cleared to Atlanta, 39 00:02:32,985 --> 00:02:35,280 climb and maintain 5000. 40 00:02:36,447 --> 00:02:39,449 - Climb and maintain 5000. Midex 1-0-5. 41 00:02:40,075 --> 00:02:41,243 For this leg of the flight, 42 00:02:41,368 --> 00:02:43,580 Danny Martin will be the acting captain 43 00:02:43,705 --> 00:02:45,747 and Bill Weiss, the first officer. 44 00:02:46,248 --> 00:02:49,460 - You had two captains and they... they literally 45 00:02:49,544 --> 00:02:51,587 could switch seats because of that. 46 00:02:51,712 --> 00:02:54,174 And they did do that over the course of two days, 47 00:02:54,299 --> 00:02:56,884 flipping out who was the pilot flying 48 00:02:57,009 --> 00:02:58,343 and who was the pilot not flying. 49 00:02:58,427 --> 00:03:02,723 - Uh, our alternate will be DCA if we can't make Atlanta. 50 00:03:03,515 --> 00:03:05,810 There are thunderstorms in Atlanta, 51 00:03:05,894 --> 00:03:08,729 so the crew has taken on additional fuel 52 00:03:08,854 --> 00:03:11,399 in case they have to divert to another airport. 53 00:03:13,610 --> 00:03:17,280 - Takeoff weight is 7-7-1-2-2 pounds. Set stab trim 2.2. 54 00:03:21,617 --> 00:03:24,162 Just past 3 in the afternoon, 55 00:03:24,245 --> 00:03:25,830 the pilots start the engines. 56 00:03:29,250 --> 00:03:31,502 - Starting number one. 57 00:03:32,920 --> 00:03:35,465 The DC-9 used for today's flight 58 00:03:35,590 --> 00:03:38,425 is powered by two Pratt and Whitney engines 59 00:03:38,550 --> 00:03:41,554 mounted on the fuselage at the rear of the plane. 60 00:03:43,848 --> 00:03:46,975 - Because the engines were in the back, 61 00:03:47,100 --> 00:03:50,938 they were close together, which made for a little bit easier 62 00:03:51,063 --> 00:03:52,606 flying in emergency situations. 63 00:03:52,731 --> 00:03:55,693 Second of all, for the passengers, it's quieter. 64 00:03:55,776 --> 00:03:59,447 - Thank you. 65 00:03:59,572 --> 00:04:01,574 Can I put that up here for you? 66 00:04:02,824 --> 00:04:04,117 Thank you. 67 00:04:04,242 --> 00:04:08,914 The plane is loaded and ready to depart on schedule. 68 00:04:12,335 --> 00:04:15,212 - Airspeed bug, 1-33 set. 69 00:04:15,295 --> 00:04:17,632 And, ah, 1.9 on the EPR 70 00:04:17,757 --> 00:04:18,757 - Okay. 71 00:04:26,139 --> 00:04:27,432 Ladies and gentlemen, 72 00:04:27,557 --> 00:04:30,019 we are number one for departure so we should be airborne 73 00:04:30,144 --> 00:04:31,437 within one minute. 74 00:04:31,562 --> 00:04:33,523 Flight attendants please be seated. 75 00:04:38,278 --> 00:04:41,656 - Midex 1-0-5 cleared for takeoff. 76 00:04:41,781 --> 00:04:44,951 - Midex 1-0-5. 77 00:04:48,329 --> 00:04:51,665 - Here we go. Spooling up. 78 00:04:55,670 --> 00:04:58,213 - This was a very normal morning, 79 00:04:58,338 --> 00:05:00,132 for a very normal flight. 80 00:05:00,257 --> 00:05:03,427 It was a gorgeous blue sky, September day. 81 00:05:03,511 --> 00:05:06,639 There was a little bit of gusty winds, 82 00:05:06,764 --> 00:05:09,350 but it was nothing for Milwaukee. 83 00:05:11,185 --> 00:05:15,273 - Power normal. One hundred. 84 00:05:16,357 --> 00:05:20,235 The pilots need to reach a speed of 127 knots for take-off. 85 00:05:20,360 --> 00:05:24,781 - V-1. Rotate. 86 00:05:29,661 --> 00:05:31,331 At 3:21 in the afternoon, 87 00:05:31,456 --> 00:05:34,875 Flight 1-0-5 begins its journey. 88 00:05:37,545 --> 00:05:39,880 The flight plan calls for the plane to climb 89 00:05:40,005 --> 00:05:44,343 to an altitude of 33 000 feet for the 2-hour trip to Atlanta. 90 00:05:50,432 --> 00:05:52,017 - Gear Up. 91 00:05:53,394 --> 00:05:56,646 Just 450 feet above the ground... 92 00:06:00,401 --> 00:06:03,112 What the hell was that? 93 00:06:03,362 --> 00:06:06,865 ...the pilots lose power in one of the engines. 94 00:06:08,242 --> 00:06:10,745 - It's a critical situation because if you don't do 95 00:06:10,870 --> 00:06:13,538 something about it immediately, you won't have time 96 00:06:13,663 --> 00:06:17,043 to do anything about it. Altitude is your friend. 97 00:06:22,423 --> 00:06:23,800 Midex 1-0-5, 98 00:06:23,925 --> 00:06:26,009 turn left heading 1-7-5. 99 00:06:28,678 --> 00:06:32,725 - What have we got here, Bill? Here! 100 00:06:33,810 --> 00:06:38,814 - Midex 1-0-5 roger, ah we got an emergency here. 101 00:06:40,608 --> 00:06:42,567 - Midex 1-0-5, roger. 102 00:06:44,278 --> 00:06:46,406 The plane begins rolling to the right 103 00:06:46,488 --> 00:06:47,865 and dropping. 104 00:06:50,867 --> 00:06:52,786 - Oh crap! 105 00:06:53,829 --> 00:06:56,040 The DC-9 is stalling. 106 00:06:58,543 --> 00:07:00,961 - Get your heads down. 107 00:07:06,634 --> 00:07:09,387 Heads down! Heads down! 108 00:07:11,721 --> 00:07:14,434 Less than a minute after takeoff, 109 00:07:14,559 --> 00:07:17,060 Flight 1-0-5 is diving towards the ground 110 00:07:17,144 --> 00:07:20,105 at more than 170 miles an hour. 111 00:07:31,701 --> 00:07:32,994 The plane hits the ground 112 00:07:33,119 --> 00:07:36,038 less than 17-hundred feet from the runway. 113 00:07:38,124 --> 00:07:42,043 - A DC-9 has crashed southwest of runway 1-9-right. 114 00:07:50,845 --> 00:07:54,807 All 31 people on board have been killed. 115 00:07:59,644 --> 00:08:02,355 The crash of Midwest Express Flight 1-0-5 116 00:08:02,482 --> 00:08:05,735 is the third major accident in the United States this year 117 00:08:05,860 --> 00:08:08,821 and the eighth accident worldwide. 118 00:08:08,946 --> 00:08:12,867 With more than 12-hundred people killed, this is becoming 119 00:08:12,992 --> 00:08:15,076 one of the deadliest years in the history 120 00:08:15,202 --> 00:08:16,995 of civil aviation. 121 00:08:17,079 --> 00:08:18,831 Passengers are unnerved. 122 00:08:19,540 --> 00:08:21,666 Everyone says: "My God, another one." 123 00:08:21,750 --> 00:08:24,002 What do you say to the public about the crashes 124 00:08:24,127 --> 00:08:25,338 that we've been having? 125 00:08:25,420 --> 00:08:27,255 - Well, insofar as the National Transportation Safety Board 126 00:08:27,380 --> 00:08:29,675 is concerned, we are sparing no effort to determine the cause 127 00:08:29,759 --> 00:08:31,843 of each one of them and we will make the necessary 128 00:08:31,927 --> 00:08:34,388 recommendations to keep any repeat of any one of them 129 00:08:34,514 --> 00:08:35,347 from happening. 130 00:08:39,268 --> 00:08:41,354 - Can you show me where it started to bank? 131 00:08:42,605 --> 00:08:45,899 Investigators from the NTSB begin by interviewing 132 00:08:46,024 --> 00:08:50,111 witnesses of Midwest Express Flight 1-0-5's fatal dive. 133 00:08:51,072 --> 00:08:53,365 They either came forward or we tracked them down. 134 00:08:53,490 --> 00:08:55,533 We ended up making out a questionnaire 135 00:08:55,618 --> 00:08:59,246 with 40 or 50 questions on it to kind of cover all the bases. 136 00:09:02,124 --> 00:09:03,793 - OK, got it. 137 00:09:07,922 --> 00:09:10,006 While the witness accounts differ in detail, 138 00:09:10,091 --> 00:09:13,260 they all describe more or less the same thing. 139 00:09:14,302 --> 00:09:16,889 - I saw a couple of puffs of black smoke come out 140 00:09:16,972 --> 00:09:19,683 and I, I just figured that they had gunned the engines 141 00:09:19,767 --> 00:09:22,352 a little bit. An instant later the left wing rolls up 142 00:09:22,436 --> 00:09:27,149 and it tipped over and it went nose first into the trees here. 143 00:09:30,360 --> 00:09:32,779 Most of the witnesses agree that takeoff 144 00:09:32,904 --> 00:09:36,450 appeared normal until the airplane was about 300 feet 145 00:09:36,576 --> 00:09:37,994 from the ground. 146 00:09:38,119 --> 00:09:42,038 Almost all report smoke and fire coming from the right engine 147 00:09:42,123 --> 00:09:44,917 several remember loud bangs. 148 00:09:45,042 --> 00:09:47,628 Most said that the plane then rolled abruptly 149 00:09:47,753 --> 00:09:52,383 into a steep right bank, went into a nose-low spin and crashed. 150 00:09:56,345 --> 00:09:59,724 - The value of having so many witness statements 151 00:09:59,807 --> 00:10:02,600 to look at was that they gave us a picture of what happened 152 00:10:02,684 --> 00:10:06,563 right at the end, a loss of control, a fire, 153 00:10:06,647 --> 00:10:08,774 and, of course, the impact itself. 154 00:10:09,232 --> 00:10:11,152 Investigators must now determine 155 00:10:11,277 --> 00:10:15,615 what could have caused such a catastrophic loss of control 156 00:10:15,697 --> 00:10:17,950 so soon after takeoff. 157 00:10:21,287 --> 00:10:23,163 - I'm guessing this was made by the right wing. 158 00:10:23,288 --> 00:10:25,957 - Yup, agreed. 159 00:10:30,171 --> 00:10:31,880 - Let's see what we can figure out. 160 00:10:32,380 --> 00:10:34,133 After securing the crash site 161 00:10:34,216 --> 00:10:38,471 of Midwest Express Flight 1-0-5, investigators begin mapping 162 00:10:38,553 --> 00:10:39,971 the wreckage field. 163 00:10:40,722 --> 00:10:42,975 I think the whole length of the impact site 164 00:10:43,100 --> 00:10:46,479 was about 295 feet, not much more than two times 165 00:10:46,604 --> 00:10:48,063 the length of the airplane. 166 00:10:48,188 --> 00:10:52,485 So the airplane hit pretty steeply and didn't go very far. 167 00:10:53,778 --> 00:10:59,325 - Right-wing tip here, and horizontal stabilizer here. 168 00:11:01,409 --> 00:11:03,620 This is how the plane hit the ground. 169 00:11:03,703 --> 00:11:08,542 A 90-degree right roll, and a right yaw. 170 00:11:12,421 --> 00:11:14,631 Can you grab a picture? - You got it. 171 00:11:16,216 --> 00:11:19,511 The wreckage path confirms eyewitness reports. 172 00:11:20,721 --> 00:11:23,182 It very definitely indicates right up front 173 00:11:23,307 --> 00:11:24,557 that you've got a loss of control. 174 00:11:24,682 --> 00:11:27,311 It doesn't suggest why you had the loss of control. 175 00:11:27,394 --> 00:11:29,437 It kind of opens the door to a lot of different 176 00:11:29,562 --> 00:11:30,815 investigative avenues. 177 00:11:33,734 --> 00:11:36,570 - Yeah, it's fire damage for sure, but it looks like 178 00:11:36,696 --> 00:11:38,072 all the pieces are here. 179 00:11:39,740 --> 00:11:42,659 Investigators study the plane's control surfaces, 180 00:11:42,743 --> 00:11:44,745 starting with the ailerons. 181 00:11:46,246 --> 00:11:49,041 The ailerons on each wing direct the plane's roll. 182 00:11:49,166 --> 00:11:54,337 If an aileron malfunctions and gets stuck in one position, 183 00:11:54,422 --> 00:11:57,716 it could cause a devastating lack of control. 184 00:12:00,760 --> 00:12:03,556 - Control tabs are in place. They seem to be intact. 185 00:12:05,349 --> 00:12:08,601 We didn't find a problem with other components 186 00:12:08,726 --> 00:12:10,145 that are part of that system. 187 00:12:11,772 --> 00:12:13,774 With the ailerons ruled out, 188 00:12:13,899 --> 00:12:15,359 investigators turn their attention 189 00:12:15,442 --> 00:12:17,445 to the rudder system. 190 00:12:18,946 --> 00:12:22,615 - The dampers are still working. The hinges are intact. 191 00:12:24,701 --> 00:12:27,413 The fractures look like overload, not stress. 192 00:12:29,664 --> 00:12:31,750 I don't think the rudder is our culprit. 193 00:12:33,586 --> 00:12:35,754 - We didn't find anything wrong with any 194 00:12:35,879 --> 00:12:39,549 of the control systems based on that preliminary look-see. 195 00:12:40,884 --> 00:12:44,263 Could the engines provide insight into the crash 196 00:12:44,388 --> 00:12:46,890 of Midwest Express Flight 1-0-5? 197 00:12:48,142 --> 00:12:50,436 If the engines were, well, obviously banged up, 198 00:12:50,519 --> 00:12:52,855 they were fire-damaged, and they were along 199 00:12:52,980 --> 00:12:55,399 the wreckage path, which is always good, 200 00:12:55,482 --> 00:12:59,153 it means they didn't fall off somewhere earlier. 201 00:13:02,697 --> 00:13:04,700 - There's a spacer missing here. 202 00:13:09,038 --> 00:13:13,000 And most of the blades from this stage are gone. 203 00:13:14,000 --> 00:13:17,296 The team finds damage inside the right engine 204 00:13:17,379 --> 00:13:19,881 that could not have been caused on impact. 205 00:13:20,841 --> 00:13:23,219 The missing engine pieces include a spacer 206 00:13:23,344 --> 00:13:25,553 and the compressor blades 207 00:13:25,678 --> 00:13:28,515 from the 9th and 10th compressor stages. 208 00:13:29,975 --> 00:13:31,811 They're found more than half a mile 209 00:13:31,894 --> 00:13:33,812 from the main wreckage site. 210 00:13:33,895 --> 00:13:36,524 - Finding any part of the airplane 211 00:13:36,649 --> 00:13:40,152 short of where the airplane crashed was a suggestion 212 00:13:40,277 --> 00:13:43,655 of a malfunction or failure that had occurred in-flight 213 00:13:43,780 --> 00:13:46,826 and required further investigation. 214 00:13:47,993 --> 00:13:49,537 The engine and the pieces are moved 215 00:13:49,662 --> 00:13:53,331 to a nearby warehouse where they can be more closely examined. 216 00:13:53,999 --> 00:13:55,835 In the end, though, we ended up finding 217 00:13:55,918 --> 00:13:58,671 about 90% by weight of the spacer, 218 00:13:58,796 --> 00:14:01,923 so, that was a big boon to the investigation. 219 00:14:02,883 --> 00:14:05,260 Investigators study the recovered spacer 220 00:14:05,385 --> 00:14:09,849 to determine why it failed on Midwest Express Flight 1-0-5. 221 00:14:11,725 --> 00:14:13,936 - All along the pedestal, here. 222 00:14:16,312 --> 00:14:17,730 It's definitely not overstress. 223 00:14:19,357 --> 00:14:22,360 They discover a tell-tale crack on the spacer 224 00:14:22,443 --> 00:14:25,029 that appears to have spread over time, 225 00:14:25,154 --> 00:14:26,990 what's called "progressive cracking." 226 00:14:27,073 --> 00:14:31,578 - There may be stress marks. There may be, uh, cracks. 227 00:14:31,703 --> 00:14:34,623 There, there may be things that, that suggest a direction 228 00:14:34,748 --> 00:14:36,875 of failure and, and a timeframe 229 00:14:37,000 --> 00:14:38,751 where the fracture would have occurred. 230 00:14:38,878 --> 00:14:41,254 It doesn't occur all at one time. 231 00:14:42,047 --> 00:14:44,549 - Can we determine how long that crack has been spreading for? 232 00:14:44,674 --> 00:14:46,217 - I'll see what I can do. 233 00:14:48,220 --> 00:14:51,557 - We became interested not just in detailing 234 00:14:51,682 --> 00:14:54,684 that but trying to find whether this was a fracture 235 00:14:54,768 --> 00:14:57,104 that could have been detected previously. 236 00:14:58,022 --> 00:15:00,524 A closer look at the crack on the steel spacer 237 00:15:00,607 --> 00:15:03,110 reveals it is filled with nickel. 238 00:15:04,153 --> 00:15:06,572 A light-weight nickel coating is applied to certain 239 00:15:06,697 --> 00:15:09,325 vital engine pieces like the compressor spacers 240 00:15:09,450 --> 00:15:11,744 and blades to prevent corrosion. 241 00:15:14,538 --> 00:15:17,917 - The compressor was brought in to be refurbished in 1981. 242 00:15:18,000 --> 00:15:23,254 Coating stripped, spacer examined and, oh, here we go, 243 00:15:24,590 --> 00:15:25,923 re-plated. 244 00:15:27,384 --> 00:15:28,469 - That was 4 years ago. 245 00:15:29,052 --> 00:15:31,804 The maintenance records tell investigators 246 00:15:31,931 --> 00:15:34,099 that work had been done on the spacer 247 00:15:34,182 --> 00:15:37,269 that failed on Midwest Express Flight 1-0-5. 248 00:15:37,352 --> 00:15:41,356 Nickel cadmium plating is the last step 249 00:15:41,481 --> 00:15:45,193 of the refurbishment process that would have been done 250 00:15:45,318 --> 00:15:47,904 by the maintenance facility that was involved 251 00:15:47,988 --> 00:15:50,282 with essentially the overhaul of that part. 252 00:15:50,783 --> 00:15:53,118 Four years before the accident, 253 00:15:53,201 --> 00:15:55,287 the spacer was removed from the engine, 254 00:15:55,412 --> 00:15:58,164 stripped of its coating, and examined for cracks. 255 00:15:58,289 --> 00:16:02,461 The inspector reported no cracks and sent the part 256 00:16:02,543 --> 00:16:03,961 to be re-plated with nickel. 257 00:16:04,754 --> 00:16:07,131 Since nickel was found inside the crack, 258 00:16:07,256 --> 00:16:10,177 it must have been present when the nickel was applied. 259 00:16:14,682 --> 00:16:19,311 The DC-9 flew about 25-hundred flights over the next 4 years 260 00:16:19,436 --> 00:16:22,648 with the damaged spacer until it finally ruptured 261 00:16:22,773 --> 00:16:24,482 on Flight 1-0-5. 262 00:16:27,903 --> 00:16:30,072 - This should have been caught during an overhaul, 263 00:16:30,197 --> 00:16:31,532 but it wasn't. 264 00:16:31,657 --> 00:16:33,783 And so the crack kept growing and growing 265 00:16:33,866 --> 00:16:36,537 until it finally hit its failure point. 266 00:16:37,620 --> 00:16:40,832 Investigators wonder what caused the crack to form 267 00:16:40,957 --> 00:16:42,750 on the spacer in the first place. 268 00:16:43,793 --> 00:16:46,839 - These spacers have been used inside the JT8D 269 00:16:46,922 --> 00:16:47,965 for more than 20 years. 270 00:16:48,048 --> 00:16:50,341 This can't be the first one to break. 271 00:16:53,386 --> 00:16:55,514 There are identical spacers in more than 272 00:16:55,639 --> 00:17:00,561 1400 J-T-8-D engines used on airplanes around the world. 273 00:17:00,686 --> 00:17:04,021 Is there any history of similar failures? 274 00:17:05,356 --> 00:17:06,942 And it turns out that Pratt and Whitney 275 00:17:07,067 --> 00:17:09,528 were well aware of the spacer failures that occurred before. 276 00:17:09,611 --> 00:17:13,198 And so we started to wonder, what have they done about it? 277 00:17:18,202 --> 00:17:20,163 - It seems to happen a lot. 278 00:17:21,123 --> 00:17:24,250 While researching spacer issues in other aircraft, 279 00:17:24,375 --> 00:17:28,337 investigators uncover 45 similar failures 280 00:17:28,422 --> 00:17:31,717 prior to Midwest Express Flight 1-0-5's accident. 281 00:17:32,675 --> 00:17:34,595 - Well, when we heard that this part had failed 282 00:17:34,720 --> 00:17:38,432 45 times before, we kind of looked askance 283 00:17:38,557 --> 00:17:41,934 a bit at the manufacturer. It's a big deal. 284 00:17:42,810 --> 00:17:44,980 But of all the failures uncovered 285 00:17:45,105 --> 00:17:46,606 by the NTSB... 286 00:17:47,066 --> 00:17:50,778 - Not a single loss of aircraft or even a single injury. 287 00:17:51,444 --> 00:17:53,739 - Well, that says something. 288 00:17:53,946 --> 00:17:56,200 ...in every previous incident, 289 00:17:56,282 --> 00:17:57,701 the plane landed safely. 290 00:17:57,785 --> 00:18:00,119 So why did the rupture of a spacer 291 00:18:00,244 --> 00:18:04,083 on Flight 1-0-5 cause the plane to become uncontrollable 292 00:18:04,165 --> 00:18:05,584 and crash? 293 00:18:07,461 --> 00:18:09,546 - Well, we knew that none of the previous failures 294 00:18:09,630 --> 00:18:12,965 had led to an accident, so one of the questions was: 295 00:18:13,092 --> 00:18:14,259 "What made this one different?" 296 00:18:14,384 --> 00:18:16,970 - Let's see what got hit. 297 00:18:17,971 --> 00:18:20,807 Investigators consider the possibility 298 00:18:20,932 --> 00:18:24,310 that pieces of the ruptured spacer on Flight 1-0-5 299 00:18:24,435 --> 00:18:27,730 punctured the plane's fuselage and damaged vital 300 00:18:27,815 --> 00:18:31,567 control systems such as cables or hydraulic lines. 301 00:18:32,693 --> 00:18:37,574 When a part like a spacer or a fan disc breaks 302 00:18:37,657 --> 00:18:40,536 under a lot of stress it's... 303 00:18:40,661 --> 00:18:43,747 it's almost like a small explosion going off. 304 00:18:43,830 --> 00:18:47,960 You have fragments of metal flying at very, very 305 00:18:48,042 --> 00:18:49,044 high speeds. 306 00:18:50,170 --> 00:18:52,798 - OK, let's see 8 9 4. 307 00:18:54,258 --> 00:18:57,426 They study the location and pattern of all 308 00:18:57,510 --> 00:18:59,680 the puncture marks found on the skin of the plane 309 00:18:59,805 --> 00:19:02,891 to see if any were near vital control links. 310 00:19:03,851 --> 00:19:06,019 - No control cables. No hydraulics. 311 00:19:09,897 --> 00:19:10,982 10, 12. 312 00:19:15,945 --> 00:19:18,030 No control cables, no hydraulics. 313 00:19:20,867 --> 00:19:22,536 What about the pieces of the plane 314 00:19:22,661 --> 00:19:24,037 that we haven't been able to find? 315 00:19:25,247 --> 00:19:26,999 There are many critical pieces of the plane 316 00:19:27,124 --> 00:19:31,752 that have not been recovered or are too badly damaged to study. 317 00:19:33,005 --> 00:19:36,008 - Is it possible to figure out if they could have been hit 318 00:19:36,090 --> 00:19:37,425 by the engine pieces? 319 00:19:38,719 --> 00:19:41,805 - We have what we need to run a trajectory analysis. 320 00:19:43,222 --> 00:19:44,391 - Alright. 321 00:19:45,017 --> 00:19:47,519 - We were looking at could these parts 322 00:19:47,603 --> 00:19:51,440 that have left the engine, uh, strike a control surface, 323 00:19:51,565 --> 00:19:55,443 or the hydraulic system or anything else 324 00:19:55,568 --> 00:19:57,278 where they could have done secondary damage 325 00:19:57,403 --> 00:20:00,031 that would have compounded the situation 326 00:20:00,115 --> 00:20:01,032 the pilots were facing. 327 00:20:01,950 --> 00:20:04,869 Knowing the plane's velocity, angle of ascent, 328 00:20:04,952 --> 00:20:07,914 and the wind speed at the time the engine failed, 329 00:20:08,039 --> 00:20:11,500 the team calculates the path of debris ejected 330 00:20:11,585 --> 00:20:12,877 from the engine. 331 00:20:13,921 --> 00:20:17,007 - The smallest piece we found was about half an ounce. 332 00:20:17,924 --> 00:20:19,759 The largest piece was just over a pound. 333 00:20:19,884 --> 00:20:23,305 - So everything moves away from the plane. Nothing hits it. 334 00:20:24,388 --> 00:20:27,099 The trajectory analysis tells investigators 335 00:20:27,226 --> 00:20:30,144 that none of the ejected engine pieces would have struck 336 00:20:30,269 --> 00:20:34,066 the airplane with enough force to cause substantial damage 337 00:20:34,148 --> 00:20:35,733 to the control systems. 338 00:20:36,609 --> 00:20:40,739 - The analysis indicated that it was so unlikely 339 00:20:40,821 --> 00:20:43,825 that we considered it an impossibility, 340 00:20:43,951 --> 00:20:46,869 that those parts leaving the engine in the direction 341 00:20:46,953 --> 00:20:50,665 they went and the size that they had could have caused 342 00:20:50,790 --> 00:20:53,292 secondary damage that would cause loss of control. 343 00:20:55,045 --> 00:20:57,923 If spacer fragments didn't hit vital components 344 00:20:58,006 --> 00:20:59,840 and cause the loss of control, 345 00:20:59,967 --> 00:21:04,011 perhaps the initial explosive force opened the cowling, 346 00:21:04,136 --> 00:21:08,182 or engine cover, affecting the plane's aerodynamics. 347 00:21:09,058 --> 00:21:12,604 - If the cowling had been blown open, it would cause 348 00:21:12,729 --> 00:21:16,066 a lot of drag. It might cause the airplane to roll. 349 00:21:16,148 --> 00:21:19,736 It might cause the airplane to become uncontrollable. 350 00:21:20,569 --> 00:21:22,780 - There's a hole in the cowling. 351 00:21:22,864 --> 00:21:24,281 It looks to be about 2 square inches. 352 00:21:25,157 --> 00:21:27,493 The team finds evidence that the cowling 353 00:21:27,618 --> 00:21:30,913 was pierced by fragments ejected from the engine. 354 00:21:32,332 --> 00:21:37,921 - But all four latches, 1, 2, 3, 4, they're all latched. 355 00:21:38,005 --> 00:21:39,673 - It can't have opened in flight. 356 00:21:41,967 --> 00:21:45,470 - They found them all either latched or fully intact 357 00:21:45,554 --> 00:21:46,846 with no damage at all. 358 00:21:46,971 --> 00:21:49,307 So that scenario kind of went out the window. 359 00:21:51,601 --> 00:21:54,104 - So the ruptured right engine didn't bring down this plane. 360 00:21:54,186 --> 00:21:55,646 - It did not. 361 00:21:59,317 --> 00:22:01,193 Reasonably early in the investigation 362 00:22:01,318 --> 00:22:03,779 the team figured out that a spacer had failed 363 00:22:03,864 --> 00:22:05,824 and the engine had failed. 364 00:22:05,906 --> 00:22:08,576 And now we had the rest of the accident to figure out. 365 00:22:08,701 --> 00:22:11,371 Why would that cause a crash? 366 00:22:17,752 --> 00:22:20,838 Flight 1-0-5's flight data ex recorder in hopes 367 00:22:20,922 --> 00:22:23,842 of understanding how the loss of the right engine 368 00:22:23,967 --> 00:22:26,303 caused the death of 31 people. 369 00:22:27,179 --> 00:22:28,430 - It doesn't give us much, 370 00:22:28,555 --> 00:22:30,307 but it's all we've got to work with. 371 00:22:30,390 --> 00:22:31,974 It was only recording 372 00:22:32,058 --> 00:22:33,602 four flight parameters. 373 00:22:33,727 --> 00:22:37,105 It had airspeed, altitude, uh, heading 374 00:22:37,230 --> 00:22:38,898 and vertical acceleration. 375 00:22:40,192 --> 00:22:41,358 - Right here. 376 00:22:41,442 --> 00:22:43,778 A sudden deceleration at 450 feet. 377 00:22:43,903 --> 00:22:45,696 This must be where the right engine failed. 378 00:22:45,821 --> 00:22:48,700 - Well, that's consistent with what the witnesses told us. 379 00:22:50,576 --> 00:22:53,997 The engine failure we know occurred 380 00:22:54,080 --> 00:22:56,040 above the airport, so the airplane 381 00:22:56,165 --> 00:22:58,085 had only been airborne for a few seconds. 382 00:22:58,210 --> 00:23:03,714 - But their heading doesn't change when the engine fails. 383 00:23:03,798 --> 00:23:07,094 They must be applying left rudder to compensate. 384 00:23:07,219 --> 00:23:10,596 - Dead right engine, left rudder. That's the right move. 385 00:23:13,432 --> 00:23:15,059 When the right engine fails, 386 00:23:15,184 --> 00:23:18,771 the remaining engine should force the plane to the right. 387 00:23:18,896 --> 00:23:22,526 To counteract that, a pilot would apply left rudder 388 00:23:22,608 --> 00:23:24,611 to keep the plane flying straight. 389 00:23:31,410 --> 00:23:32,701 - What the hell was that? 390 00:23:33,327 --> 00:23:35,288 The data shows that's precisely 391 00:23:35,413 --> 00:23:37,249 what Captain Martin did in response 392 00:23:37,332 --> 00:23:39,960 to Flight 105's engine failure. 393 00:23:40,460 --> 00:23:41,586 After a few seconds, 394 00:23:41,670 --> 00:23:43,212 they start this yaw to the right. 395 00:23:43,296 --> 00:23:45,589 - So, right rudder? 396 00:23:47,217 --> 00:23:50,095 Four seconds after the failure of the right engine, 397 00:23:50,220 --> 00:23:54,391 the FDR data indicates that the pilot moved the rudder 398 00:23:54,473 --> 00:23:56,601 from left to right. 399 00:23:56,684 --> 00:23:59,980 That forced the plane into a sudden yaw to the right. 400 00:24:03,066 --> 00:24:04,733 - He's in a sideslip. 401 00:24:04,817 --> 00:24:08,113 And he's deviating further and further to the right. 402 00:24:10,198 --> 00:24:12,325 And then he starts to lose altitude. 403 00:24:13,492 --> 00:24:15,452 148 knots. 404 00:24:16,704 --> 00:24:18,457 He's in a high-speed stall. 405 00:24:20,291 --> 00:24:21,750 - How'd they let that happen? 406 00:24:23,545 --> 00:24:27,132 He went into a right skid, and then followed 407 00:24:27,257 --> 00:24:29,509 by an abrupt right turn and dive. 408 00:24:29,634 --> 00:24:31,678 That would be consistent with a stall. 409 00:24:31,803 --> 00:24:35,515 But the airspeeds indicated were high enough 410 00:24:35,640 --> 00:24:39,059 that you wouldn't normally have a stall at those speeds. 411 00:24:40,103 --> 00:24:42,230 - They've clearly lost control of the plane. 412 00:24:42,355 --> 00:24:44,398 Five seconds later, they hit the ground. 413 00:24:46,942 --> 00:24:49,778 The flight data tells investigators that it took 414 00:24:49,863 --> 00:24:53,657 only 10 seconds for the pilots to lose control of the plane 415 00:24:53,782 --> 00:24:56,577 after the failure of the right engine. 416 00:24:58,872 --> 00:25:01,333 I have never seen an accident sequence 417 00:25:01,415 --> 00:25:05,586 that brief, um, before or since. 418 00:25:08,673 --> 00:25:12,219 - So, he responds correctly at first with left rudder 419 00:25:12,344 --> 00:25:13,595 and nose down pitch. 420 00:25:13,720 --> 00:25:16,932 Then he inexplicably switches to right rudder? 421 00:25:17,057 --> 00:25:18,599 - And that's what leads to the yaw, 422 00:25:18,724 --> 00:25:20,684 the right roll and the eventual stall. 423 00:25:20,809 --> 00:25:23,520 - Right rudder. It makes no sense. 424 00:25:24,689 --> 00:25:27,025 - It was clear, from all the data, 425 00:25:27,107 --> 00:25:28,943 that the pilot didn't understand what happened. 426 00:25:29,068 --> 00:25:32,739 He responded inappropriately, and within seconds, 427 00:25:32,864 --> 00:25:35,032 the airplane was lost, and everybody on board 428 00:25:35,157 --> 00:25:36,535 was killed in the accident. 429 00:25:37,661 --> 00:25:41,705 Was there something about the DC-9's handling characteristics 430 00:25:41,789 --> 00:25:44,792 that led the pilots to input the right rudder? 431 00:25:44,917 --> 00:25:48,046 - So, it was relatively easy to control then? 432 00:25:49,088 --> 00:25:52,925 Just with the control wheel? 433 00:25:54,219 --> 00:25:57,055 Investigators interview DC-9 pilots 434 00:25:57,180 --> 00:26:00,808 to determine how the plane handles with only one engine. 435 00:26:00,933 --> 00:26:03,811 - The DC-9 pilots that we talked to, it was overwhelmingly 436 00:26:03,936 --> 00:26:06,815 described as a very easy, docile aircraft 437 00:26:06,940 --> 00:26:08,732 to handle in those situations. 438 00:26:08,817 --> 00:26:12,903 - Oh, this has been extremely helpful. Thanks. OK. Bye. 439 00:26:14,864 --> 00:26:16,575 They all say the same thing. 440 00:26:16,700 --> 00:26:18,910 It's no big deal with one engine. 441 00:26:21,162 --> 00:26:23,957 Because the DC-9's engines are mounted 442 00:26:24,082 --> 00:26:26,166 on the fuselage instead of the wings, 443 00:26:26,292 --> 00:26:29,378 when one engine fails it does not force the plane 444 00:26:29,461 --> 00:26:30,797 into a severe turn. 445 00:26:30,922 --> 00:26:34,425 - The DC-9 is almost a centerline thrust aircraft. 446 00:26:34,509 --> 00:26:37,721 So if you lose one engine on either side, 447 00:26:37,804 --> 00:26:41,932 there's not that much excess yawing 448 00:26:42,017 --> 00:26:44,644 or controllability problems at all. 449 00:26:46,895 --> 00:26:49,106 How easy is it to handle a DC-9 450 00:26:49,190 --> 00:26:52,027 in the situation the pilots of Flight 1-0-5 451 00:26:52,152 --> 00:26:53,944 found themselves in? 452 00:26:54,863 --> 00:26:59,159 - It was valuable to do a simulation or test flight, 453 00:26:59,284 --> 00:27:03,704 to get a better idea of exactly how the airplane performed 454 00:27:03,829 --> 00:27:06,540 under the circumstances of the accident 455 00:27:06,665 --> 00:27:08,585 but at a higher altitude. 456 00:27:11,337 --> 00:27:14,132 - OK, when we get to 10 000 feet I'm going to cut power 457 00:27:14,257 --> 00:27:16,634 to the right leaving the left at takeoff power. 458 00:27:16,759 --> 00:27:20,512 Keep the flaps at 20. Target speed is 170 knots. 459 00:27:22,015 --> 00:27:23,642 They tried to match the parameters 460 00:27:23,767 --> 00:27:26,810 of the airplane in terms of the flaps, gear, uh... 461 00:27:26,935 --> 00:27:32,733 and airspeed and then proceeded to cut the engine power. 462 00:27:34,527 --> 00:27:36,488 - OK, cutting power. 463 00:27:45,246 --> 00:27:48,665 OK, thank you. Let's go around for another. 464 00:27:50,376 --> 00:27:52,127 The flight demonstrations showed that 465 00:27:52,211 --> 00:27:55,423 the pilot didn't have to input rudder at all. 466 00:27:55,548 --> 00:27:57,800 If he had only used the ailerons, 467 00:27:57,884 --> 00:27:59,385 he could have safely flown out of it. 468 00:28:00,553 --> 00:28:04,682 - OK, this time no reaction. Let's see what the plane does. 469 00:28:06,058 --> 00:28:08,811 With no input from the pilot after the loss 470 00:28:08,894 --> 00:28:13,982 of the right engine, the plane rolls right and the nose drops. 471 00:28:16,736 --> 00:28:19,196 - OK, you can recover? 472 00:28:21,115 --> 00:28:23,201 Even with no immediate action, 473 00:28:23,284 --> 00:28:26,203 the pilot is easily able to recover the plane. 474 00:28:28,414 --> 00:28:32,042 - OK, I think we have what we need. 475 00:28:32,126 --> 00:28:35,838 - That may have actually been the best thing to do was... 476 00:28:35,922 --> 00:28:39,217 was to do nothing, watch the airplane's response, 477 00:28:39,342 --> 00:28:40,884 understand the airplane's response 478 00:28:40,969 --> 00:28:43,346 and respond appropriately to the nature of the emergency. 479 00:28:47,433 --> 00:28:48,934 - What the hell was that? 480 00:28:50,019 --> 00:28:53,064 If the DC-9 is so easy to control, 481 00:28:53,189 --> 00:28:57,067 why were two experienced pilots unable to recover 482 00:28:57,152 --> 00:28:59,362 from the loss of their right engine? 483 00:29:03,575 --> 00:29:06,869 - OK, we kpt with the airline. 484 00:29:06,952 --> 00:29:08,997 But how much experience did they actually have? 485 00:29:09,580 --> 00:29:11,624 Investigators look into the backgrounds 486 00:29:11,750 --> 00:29:14,794 of the pilots of Midwest Express Flight 1-0-5 487 00:29:14,919 --> 00:29:17,838 to understand why they didn't recover from 488 00:29:17,963 --> 00:29:19,257 a single-engine failure. 489 00:29:19,339 --> 00:29:21,634 - Neither had a lot of turbo jet experience. 490 00:29:22,259 --> 00:29:24,929 One was upgraded to captain 491 00:29:25,012 --> 00:29:27,598 with 600 hours on the DC-9, the other with only 500. 492 00:29:27,682 --> 00:29:30,268 - It doesn't seem like a whole lot. 493 00:29:31,478 --> 00:29:33,605 - Advancement to captain happened within a year 494 00:29:33,730 --> 00:29:38,067 for both of these pilots, at Midwest Express Airlines 495 00:29:38,151 --> 00:29:39,652 at that time. 496 00:29:39,778 --> 00:29:42,779 And the reason why was it was a small airline. 497 00:29:42,864 --> 00:29:46,617 It was growing quickly. They were adding airplanes. 498 00:29:48,327 --> 00:29:51,330 They consult large US airlines to determine 499 00:29:51,455 --> 00:29:53,625 their qualifications for an upgrade. 500 00:29:54,959 --> 00:29:56,586 - Ok. Thanks. 501 00:29:58,086 --> 00:30:02,133 - It's the same for both airlines: 10 years seniority 502 00:30:02,217 --> 00:30:05,094 and 75-hundred hours as DC-9 first officer 503 00:30:05,178 --> 00:30:06,304 to be considered for an upgrade. 504 00:30:07,012 --> 00:30:09,307 - You know, these guys weren't anywhere near that. 505 00:30:10,724 --> 00:30:12,684 While the pilots may have been experienced, 506 00:30:12,809 --> 00:30:16,230 neither had spent much time piloting the DC-9 507 00:30:16,355 --> 00:30:18,023 before they were promoted to captain. 508 00:30:18,857 --> 00:30:20,442 The more experience someone has 509 00:30:20,527 --> 00:30:24,655 exercising command, the more likely they are to exercise 510 00:30:24,780 --> 00:30:27,991 that command in situations that call for calm thinking, 511 00:30:28,076 --> 00:30:30,327 for rational response and so on. 512 00:30:32,038 --> 00:30:35,500 - So how much training did these guys get on engine failures? 513 00:30:36,709 --> 00:30:39,753 To understand why the pilots of Flight 1-0-5 514 00:30:39,878 --> 00:30:41,673 were not able to control their plane 515 00:30:41,798 --> 00:30:43,549 following an engine failure, 516 00:30:43,674 --> 00:30:45,844 investigators look at their training records. 517 00:30:46,678 --> 00:30:48,680 What was their experience? 518 00:30:48,805 --> 00:30:50,181 What kind of pilots were they? 519 00:30:50,306 --> 00:30:53,518 How did they respond to unusual events? 520 00:30:53,601 --> 00:30:57,105 Did they seem self-confident? How well did they work together? 521 00:30:58,855 --> 00:31:05,153 - OK, so the captain's practiced 12 engine failures 522 00:31:05,238 --> 00:31:11,368 on takeoff in the simulator. The first officer, 15 sessions. 523 00:31:12,077 --> 00:31:13,704 They discover that both pilots 524 00:31:13,829 --> 00:31:16,915 had been extensively trained to cope with engine failure 525 00:31:17,040 --> 00:31:18,375 on take-off... 526 00:31:19,460 --> 00:31:21,712 - It's precisely the type of emergency they faced 527 00:31:21,796 --> 00:31:22,713 on Flight 1-0-5. 528 00:31:23,548 --> 00:31:26,049 ...but what exactly were they taught? 529 00:31:27,719 --> 00:31:30,555 - We looked very closely at the training these pilots 530 00:31:30,680 --> 00:31:33,724 received and interviewed the flight instructor 531 00:31:33,849 --> 00:31:37,561 who oversaw their training in the DC-9 for Midwest Express. 532 00:31:38,895 --> 00:31:43,108 - Tell me what you can remember about captains Martin and Weiss. 533 00:31:45,987 --> 00:31:49,824 - They were both excellent pilots, trained to proficiency. 534 00:31:51,451 --> 00:31:54,119 - Lots of simulator training on engine failure. 535 00:31:54,244 --> 00:31:58,540 - You bet. We ran them through all sorts of scenarios. 536 00:32:00,167 --> 00:32:04,923 - Let's focus on takeoff with simulated engine failure. 537 00:32:05,048 --> 00:32:06,590 What were they taught? 538 00:32:11,762 --> 00:32:13,847 - Pay attention to your yaw. It's your best cue. 539 00:32:16,683 --> 00:32:19,519 Yawing right. Applying left rudder. 540 00:32:20,605 --> 00:32:23,273 - Control wheel as needed. Keep the plane level. 541 00:32:23,357 --> 00:32:27,236 Nice and easy. That's a good job. 542 00:32:27,319 --> 00:32:28,904 - Got it. 543 00:32:29,905 --> 00:32:32,616 Captain Martin was trained to pay close attention 544 00:32:32,700 --> 00:32:35,452 to the plane's yawing motion when identifying 545 00:32:35,536 --> 00:32:37,288 and correcting an engine failure. 546 00:32:38,038 --> 00:32:40,500 - It looks like they had excellent training. 547 00:32:40,625 --> 00:32:42,460 Thanks for the insight. 548 00:32:45,672 --> 00:32:47,464 We found the instructor, 549 00:32:47,548 --> 00:32:50,509 uh, to be very capable, very dedicated, 550 00:32:50,634 --> 00:32:53,261 and we found the simulators to be... to be okay, 551 00:32:53,346 --> 00:32:56,432 uh, for that time. 552 00:32:57,307 --> 00:33:00,478 If Captain Martin was extensively trained to cope 553 00:33:00,560 --> 00:33:02,105 with engine failure on take-off, 554 00:33:02,188 --> 00:33:05,107 why didn't he do what he was trained to do. 555 00:33:08,861 --> 00:33:12,573 - Most of their training was for an engine failure at take-off. 556 00:33:12,699 --> 00:33:15,159 Pretty easy to identify which way you're yawing. 557 00:33:15,284 --> 00:33:16,243 Yeah. 558 00:33:16,368 --> 00:33:18,371 - Investigators consider the timing 559 00:33:18,496 --> 00:33:19,705 of the engine failure. 560 00:33:19,830 --> 00:33:21,164 If you're closer to the ground, 561 00:33:21,289 --> 00:33:24,460 there are much more visual cues available from the ground 562 00:33:24,544 --> 00:33:26,671 to see what the airplane is encountering. 563 00:33:28,131 --> 00:33:30,133 Not so easy when you're already 564 00:33:30,215 --> 00:33:31,759 in a steep climb. 565 00:33:31,884 --> 00:33:32,884 - Right. 566 00:33:34,053 --> 00:33:37,848 As Flight 1-0-5 was climbing, only blue sky 567 00:33:37,973 --> 00:33:39,808 would have been visible to the pilots, 568 00:33:39,892 --> 00:33:42,103 making it more difficult to identify 569 00:33:42,228 --> 00:33:44,105 the direction of the yaw. 570 00:33:47,567 --> 00:33:49,067 - What the hell was that? 571 00:33:50,111 --> 00:33:51,738 With no outside visual cues, 572 00:33:51,863 --> 00:33:55,240 investigators believe Captain Martin's initial response 573 00:33:55,365 --> 00:33:58,869 was a spontaneous reaction to the plane's changing motion 574 00:33:58,952 --> 00:34:02,330 and not the result of an analysis of the situation. 575 00:34:02,414 --> 00:34:05,667 But what triggered the incorrect rudder application 576 00:34:05,751 --> 00:34:07,045 a few seconds later, 577 00:34:07,127 --> 00:34:09,922 that resulted in a total loss of control? 578 00:34:11,673 --> 00:34:13,967 - Alright, let's see what these guys were doing. 579 00:34:19,347 --> 00:34:22,226 Midex 1-0-5, cleared for takeoff. 580 00:34:22,351 --> 00:34:23,894 Midex 1-0-5. 581 00:34:23,978 --> 00:34:26,271 Here we go. 582 00:34:29,275 --> 00:34:32,027 Investigators pin their hopes on the CVR 583 00:34:32,110 --> 00:34:34,864 to explain Captain Martin's actions. 584 00:34:36,699 --> 00:34:38,117 Spooling up. 585 00:34:38,617 --> 00:34:39,869 Power normal. 586 00:34:42,538 --> 00:34:43,956 100. 587 00:34:48,293 --> 00:34:50,213 V-1. Rotate. 588 00:34:53,800 --> 00:34:54,967 Gear up. 589 00:34:59,806 --> 00:35:01,056 - The spacer? 590 00:35:01,139 --> 00:35:02,224 (controller on CVR: Midex 1-0-5, 591 00:35:02,307 --> 00:35:04,059 turn left heading 1-7-5. 592 00:35:04,143 --> 00:35:06,521 What have we got here, Bill? 593 00:35:06,646 --> 00:35:07,480 Here! 594 00:35:08,271 --> 00:35:11,483 Midex 1-0-5 roger, 595 00:35:11,608 --> 00:35:12,985 ah we got an emergency here. 596 00:35:14,987 --> 00:35:16,447 Midex 1-0-5 roger. 597 00:35:16,572 --> 00:35:18,032 Oh crap. 598 00:35:19,117 --> 00:35:21,077 Get your heads down. Heads down! 599 00:35:27,875 --> 00:35:30,670 - I've never heard an accident unfold so quickly. 600 00:35:30,795 --> 00:35:32,672 Holy smokes. 601 00:35:33,338 --> 00:35:36,007 And I remember just being amazed 602 00:35:36,134 --> 00:35:38,552 how quickly the accident took place. 603 00:35:38,677 --> 00:35:41,179 It was like they're... they were flying. 604 00:35:41,304 --> 00:35:43,349 You hear the engine fail, 605 00:35:43,474 --> 00:35:46,811 uh, and the next thing you know, the airplane's lost. 606 00:35:48,813 --> 00:35:51,731 - OK, so what did we hear? 607 00:35:52,275 --> 00:35:53,358 - It sure happened fast. 608 00:35:53,483 --> 00:35:56,820 - Yup, 15 seconds from the sound of the engine exploding 609 00:35:56,945 --> 00:35:58,405 to the end of the recording. 610 00:35:58,530 --> 00:36:00,282 Astonishing. 611 00:36:05,538 --> 00:36:06,831 What else? 612 00:36:06,956 --> 00:36:09,666 - "What was that? What have we got?" 613 00:36:09,791 --> 00:36:13,045 The captain seemed uncertain. 614 00:36:13,170 --> 00:36:14,713 - Agreed. 615 00:36:18,885 --> 00:36:20,177 - What have we got here, Bill? 616 00:36:21,429 --> 00:36:24,681 - Well, it was clear from the cockpit voice recorder 617 00:36:24,764 --> 00:36:28,143 that the pilot didn't recognize what had happened. 618 00:36:28,226 --> 00:36:29,186 He articulates that. 619 00:36:29,311 --> 00:36:32,106 "What was that? What have we got here, Bill?" 620 00:36:34,858 --> 00:36:36,277 - What the hell was that? 621 00:36:36,902 --> 00:36:38,153 The sound of the engine, 622 00:36:38,237 --> 00:36:41,489 the sensation of the right yaw, and the instruments 623 00:36:41,574 --> 00:36:44,577 should have told Captain Martin that he was dealing 624 00:36:44,702 --> 00:36:47,038 with a failure of his right engine. 625 00:36:48,914 --> 00:36:50,666 - Anything else on that tape? 626 00:36:51,416 --> 00:36:54,670 - Not a lot of troubleshooting or communication 627 00:36:54,753 --> 00:36:56,297 between them really. 628 00:36:57,380 --> 00:37:00,425 - Actually none. 629 00:37:06,181 --> 00:37:10,018 - What have we got here, Bill? Here! 630 00:37:10,853 --> 00:37:15,650 - Midex 1-0-5 roger, ah we got an emergency here. 631 00:37:16,400 --> 00:37:18,235 Investigators hear Captain Martin 632 00:37:18,360 --> 00:37:22,030 asking his first officer for assistance in assessing the situation, 633 00:37:22,114 --> 00:37:24,867 but First Officer Weiss never replies. 634 00:37:25,701 --> 00:37:30,748 - That was troubling to me because I would have expected 635 00:37:30,831 --> 00:37:33,918 that in an emergency situation and especially 636 00:37:34,001 --> 00:37:38,588 when asked for help, that the other crew member 637 00:37:38,672 --> 00:37:40,132 would have helped if he could. 638 00:37:41,007 --> 00:37:45,012 So that prompted some further investigation. 639 00:37:46,429 --> 00:37:50,351 - OK, let's start with that: Why was the Captain confused 640 00:37:50,476 --> 00:37:51,393 about what had happened? 641 00:37:51,476 --> 00:37:53,228 - It should have been obvious. 642 00:37:56,898 --> 00:37:58,693 46-hundred flight hours: 643 00:37:58,818 --> 00:38:01,070 but he's never experienced an actual engine failure. 644 00:38:01,570 --> 00:38:03,947 NTSB Investigators looking into the crash 645 00:38:04,030 --> 00:38:07,117 of Midwest Express Flight 1-0-5 have learned that 646 00:38:07,242 --> 00:38:09,411 Captain Martin's only experience 647 00:38:09,494 --> 00:38:12,289 with a single-engine failure was in a simulator. 648 00:38:12,873 --> 00:38:15,458 - Yaw and deceleration don't feel the same, 649 00:38:15,543 --> 00:38:16,793 plus all the sounds are different. 650 00:38:16,918 --> 00:38:18,963 - It's not the same as the real thing. 651 00:38:19,755 --> 00:38:21,673 - It was a catastrophic engine failure where they had thrust 652 00:38:21,798 --> 00:38:24,677 and then they didn't. It was immediate. Uh... 653 00:38:24,802 --> 00:38:28,931 I don't think they were trained in that kind of scenario. 654 00:38:29,724 --> 00:38:31,391 - What have we got here, Bill? 655 00:38:32,684 --> 00:38:34,853 The limitations of the simulator may explain 656 00:38:34,978 --> 00:38:36,896 Captain Martin's initial confusion, 657 00:38:37,023 --> 00:38:41,110 but it does not explain the first officer's unusual silence. 658 00:38:42,820 --> 00:38:44,447 - Let's have another listen. 659 00:38:46,364 --> 00:38:48,867 They return to the cockpit voice recording 660 00:38:48,992 --> 00:38:52,204 to better understand how First Officer Weiss 661 00:38:52,329 --> 00:38:53,914 reacted to the emergency. 662 00:38:57,208 --> 00:38:58,753 What the hell was that? 663 00:38:58,878 --> 00:38:59,836 - That's one. 664 00:38:59,961 --> 00:39:01,088 Midex 1-0-5, 665 00:39:01,213 --> 00:39:02,672 turn left heading 1-7-5. 666 00:39:02,757 --> 00:39:04,632 What have we got here, Bill? 667 00:39:04,717 --> 00:39:06,427 - That's two. - Here! 668 00:39:06,552 --> 00:39:07,844 - That's three. 669 00:39:11,222 --> 00:39:12,849 He asks for help three times, 670 00:39:12,974 --> 00:39:15,436 but the FO says absolutely nothing to him the entire time. 671 00:39:15,561 --> 00:39:18,773 - Not even "I'm not sure," or "I don't know." 672 00:39:18,898 --> 00:39:20,190 Not a word. 673 00:39:21,067 --> 00:39:24,027 - In this situation, seconds were critical. 674 00:39:24,110 --> 00:39:28,574 Had he said right away, "I don't know," then the captain 675 00:39:28,699 --> 00:39:31,577 would immediately have tried to rely on his own understanding 676 00:39:31,702 --> 00:39:34,621 of the situation, rather than expect the first officer 677 00:39:34,746 --> 00:39:36,956 to come up with an explanation of what he had. 678 00:39:39,085 --> 00:39:42,463 What could have caused the first officer's silence? 679 00:39:44,422 --> 00:39:49,637 - Hang on. What altitude where they at when the engine failed? 680 00:39:52,056 --> 00:39:53,306 - 450 feet. 681 00:39:53,766 --> 00:39:55,976 - This could be it then. 682 00:39:56,101 --> 00:39:58,436 Pilots say they were taught not to make callouts 683 00:39:58,561 --> 00:40:01,481 or even verbalize the nature of an emergency 684 00:40:01,606 --> 00:40:05,485 after 100 knots, before reaching 800 feet. 685 00:40:06,402 --> 00:40:07,612 - Let me see. 686 00:40:14,702 --> 00:40:16,831 Not even to identify a failed engine. 687 00:40:16,956 --> 00:40:20,251 No communication at all until 800 feet. 688 00:40:21,918 --> 00:40:24,380 I couldn't imagine a management team 689 00:40:24,463 --> 00:40:29,092 at Midwest Express thinking this silent cockpit business 690 00:40:29,175 --> 00:40:31,094 made any sense. 691 00:40:31,219 --> 00:40:34,974 It just flies in the face of communication, 692 00:40:35,099 --> 00:40:38,811 which is kind of the fabric that holds a safe flight together. 693 00:40:38,936 --> 00:40:42,148 So it just blew my mind, frankly. 694 00:40:46,818 --> 00:40:49,447 - What the hell was that? 695 00:40:49,864 --> 00:40:51,824 Investigators think First Officer Weiss 696 00:40:51,949 --> 00:40:55,034 may have been following a Midwest Express unwritten rule 697 00:40:55,161 --> 00:40:59,664 of not discussing emergencies until the plane reaches 800 feet. 698 00:40:59,789 --> 00:41:02,083 It's important during an emergency 699 00:41:02,168 --> 00:41:06,297 for people to talk to each other because they both may not be 700 00:41:06,422 --> 00:41:08,047 looking at the same instrument. 701 00:41:08,173 --> 00:41:10,759 They both may not be looking at the same thing outside. 702 00:41:10,842 --> 00:41:13,137 You have to talk. You have to talk. 703 00:41:13,971 --> 00:41:17,141 One last thing troubles investigators. 704 00:41:17,266 --> 00:41:20,226 In spite of his first officer's silence, Captain Martin 705 00:41:20,351 --> 00:41:23,188 could have easily identified which engine had failed 706 00:41:23,313 --> 00:41:25,190 simply by looking at his instruments. 707 00:41:25,900 --> 00:41:28,443 Both pilots had visual information 708 00:41:28,527 --> 00:41:29,737 from the engine flight instruments, 709 00:41:29,862 --> 00:41:31,780 the bank turn indicator and so on, 710 00:41:31,864 --> 00:41:34,909 that would have told them um... 711 00:41:35,034 --> 00:41:37,202 what was going on in terms of the loss of thrust. 712 00:41:39,038 --> 00:41:41,498 - I don't think either of them were scanning the instruments. 713 00:41:41,623 --> 00:41:43,000 - Agreed. 714 00:41:43,083 --> 00:41:44,376 They never saw which engine had failed, 715 00:41:44,501 --> 00:41:47,338 the direction of the yaw or the severity of the roll. 716 00:41:48,922 --> 00:41:51,842 The NTSB concludes that the pilots' failure 717 00:41:51,967 --> 00:41:54,677 to monitor their instruments contributed to Captain Martin's 718 00:41:54,802 --> 00:41:57,014 incorrect rudder application. 719 00:41:57,139 --> 00:41:59,391 With the lack of visual cues, 720 00:41:59,516 --> 00:42:02,061 the only sure way they would have had to recognize 721 00:42:02,186 --> 00:42:06,023 which engine failed would be to look at the instruments. 722 00:42:07,065 --> 00:42:09,943 The pilots' lack of awareness ultimately led 723 00:42:10,068 --> 00:42:13,030 to the stall that brought down Flight 1-0-5. 724 00:42:19,411 --> 00:42:21,038 - Up until here he should be fine. 725 00:42:21,121 --> 00:42:23,541 But then there's no communication 726 00:42:23,623 --> 00:42:25,291 and no instrument scanning. 727 00:42:26,501 --> 00:42:28,086 And this, this is what dooms them. 728 00:42:28,211 --> 00:42:31,215 He puts in right rudder, which sends them 729 00:42:31,297 --> 00:42:36,052 into a sideslip, an extreme right roll and a stall. 730 00:42:36,637 --> 00:42:38,764 - If they had talked to each other, 731 00:42:38,889 --> 00:42:42,141 scanned their instruments you don't get this accident. 732 00:42:44,269 --> 00:42:47,606 - The reality of the situation is the mismanagement 733 00:42:47,731 --> 00:42:50,943 inside the cockpit caused the accident, 734 00:42:51,068 --> 00:42:53,237 not the engine failure. 735 00:42:54,112 --> 00:42:56,072 The NTSB's final report 736 00:42:56,197 --> 00:42:58,367 makes several key recommendations to prevent 737 00:42:58,449 --> 00:43:00,786 this type of accident from happening again. 738 00:43:00,911 --> 00:43:04,206 They recommend a directive requiring airlines 739 00:43:04,289 --> 00:43:07,543 to replace the existing spacers with a new type of spacer 740 00:43:07,626 --> 00:43:09,378 which is less likely to fail. 741 00:43:10,295 --> 00:43:12,797 They also recommend that airlines are advised 742 00:43:12,922 --> 00:43:15,092 to teach their pilots to communicate 743 00:43:15,175 --> 00:43:16,635 during on-board emergencies. 744 00:43:17,635 --> 00:43:20,639 It should never be overstated the importance 745 00:43:20,764 --> 00:43:21,974 of crew coordination. 746 00:43:22,099 --> 00:43:24,809 Every crew member has something valuable to add. 747 00:43:24,934 --> 00:43:29,940 Anything that is an abnormality needs to be discussed 748 00:43:30,733 --> 00:43:32,400 at the proper time. 749 00:43:33,360 --> 00:43:35,570 They also suggest that airlines review 750 00:43:35,653 --> 00:43:38,782 their simulator training to ensure pilots are taught 751 00:43:38,907 --> 00:43:41,619 to use their instruments to assess the nature 752 00:43:41,702 --> 00:43:43,119 of engine failures. 753 00:43:43,202 --> 00:43:47,458 - I think this accident still has an impact today 754 00:43:47,541 --> 00:43:54,297 because it's such a clear illustration of what happens 755 00:43:54,422 --> 00:43:58,677 when you don't do what you should to do in an emergency. 756 00:43:58,802 --> 00:44:00,846 Any time there's an emergency, 757 00:44:00,971 --> 00:44:04,557 you should have the exact same procedures, 758 00:44:04,682 --> 00:44:06,476 and you should run right to them. 759 00:44:07,686 --> 00:44:11,440 Midwest Express Airlines continued to operate 760 00:44:11,523 --> 00:44:12,900 until 2009. 761 00:44:13,025 --> 00:44:16,070 It merged with Frontier Airlines in 2010. 762 00:44:37,423 --> 00:44:40,344 Subtitling: difuze 60398

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