The Impossible Landing — Transcript
Full transcript
- 0:00(dramatic music)
- 0:01- On July 19, 1989, United Airlines Flight 232
- 0:05takes off from Denver, Colorado heading towards Chicago.
- 0:09It's been nearly an hour since departure
- 0:11and the plane is now flying over Iowa
- 0:14with a sunny, clear sky and relatively no turbulence.
- 0:18By all accounts, it's a routine flight
- 0:20with two very experienced pilots
- 0:22and one flight engineer in the cockpit.
- 0:25The plane is on autopilot
- 0:27and is now doing a turn towards a heading of 95 degrees.
- 0:32But then suddenly, with a violent jolt,
- 0:36everything changes.
- 0:39The plane is a DC-10
- 0:41and it is outfitted with three engines,
- 0:43one underneath each wing
- 0:45and a third at the base of the tail fin
- 0:47towards the back of the plane.
- 0:49After hearing and feeling the explosive bang,
- 0:52flight engineer Dudley Dvorak reports
- 0:54that it is the rear engine that has failed.
- 0:57Copilot William Records takes control of the plane
- 1:00as Captain Alfred Haynes
- 1:02begins an engine shutdown checklist.
- 1:04(pensive music)
- 1:07Though it is alarming to lose an engine mid flight,
- 1:09it isn't the worst case scenario.
- 1:12The DC-10 is designed to still be able
- 1:14to fly even if only two engines are operational,
- 1:18and so the crew is able to cut off power
- 1:20to the damaged engine
- 1:22and turn their attention to steadying the plane back out.
- 1:26But this is when they realize
- 1:28just how bad the situation actually is
- 1:31because even though the plane is able to continue flying,
- 1:34Copilot Records reports
- 1:36that none of the controls are working.
- 1:39Captain Haynes attempts to manipulate the controls as well
- 1:42and confirms that nothing seems to be functional.
- 1:46While the two pilots continue flying
- 1:48to see why the plane isn't responding
- 1:50to the controls, Flight Engineer Dvorak comes up
- 1:53with their answer.
- 1:55The plane has lost all hydraulic fluid.
- 1:59(dramatic music)
- 2:00Hydraulic fluid is needed
- 2:02for nearly every control output on the plane.
- 2:05For example, in order to make a plane bank to the left,
- 2:08a pilot will turn the control column to the left,
- 2:11causing the left aileron to move up
- 2:14and the right aileron to move down.
- 2:17The hydraulic fluid is a pressurized liquid
- 2:20that allows these ailerons to move up and down
- 2:22once the control column is moved.
- 2:25If there is no fluid, there's no pressure
- 2:27that forces this movement,
- 2:28no matter how hard the control column
- 2:31is turned left or right.
- 2:33Now, because hydraulic pressure is so vital
- 2:36to flying a plane,
- 2:37there are actually three separate hydraulic lines
- 2:39that run through a DC-10.
- 2:42These hydraulic systems are independent from one another
- 2:45so that if one should fail, there are two others
- 2:48that can continue providing hydraulic power.
- 2:51There is no procedure to follow should all three fail
- 2:55because the likelihood of this happening was thought
- 2:57to be one in a billion, virtually impossible.
- 3:02And with no hydraulic fluid left,
- 3:04the plane begins banking to the right.
- 3:07If this continues, the plane is in danger
- 3:09of fully rolling over,
- 3:11a situation that there's no recovering from.
- 3:15Flight 232 will crash. (dramatic music)
- 3:19Thinking quickly, Captain Hayes realizes
- 3:21that even without hydraulic fluid,
- 3:23they still have at least one control
- 3:25that they can manipulate: the engine throttles.
- 3:30By decreasing the power to the left engine,
- 3:33Haynes is able to slowly level the plane back out.
- 3:36(dramatic music continues)
- 3:38And with the immediate danger addressed,
- 3:40the crew can now turn their attention to the bigger issue:
- 3:44they have no way to fly this plane.
- 3:47(suspenseful music)
- 3:50Now, what the flight crew don't realize
- 3:52is that even though all three hydraulic lines
- 3:55run separately, there is one section
- 3:57in the back of the plane
- 3:58where they come within close proximity near the rear engine.
- 4:03Later investigations will reveal that within the engine,
- 4:06a fan disc had been produced using metal
- 4:09that was not completely pure
- 4:11and this manufacturing defect went unnoticed.
- 4:15A crack began to form with each flight the aircraft took
- 4:18until finally the disc couldn't hold anymore
- 4:22and broke apart within the engine.
- 4:24The resulting explosion severed the hydraulic lines
- 4:27to this rear engine,
- 4:29but it also sent shrapnel flying all around the area
- 4:32towards the same section
- 4:34where the other two hydraulic lines come close together,
- 4:37severing them as well.
- 4:39The result was all lines bleeding hydraulic fluid
- 4:43until they were empty, leaving the flight crew helpless.
- 4:47At this very moment, a flight attendant comes to the cockpit
- 4:50to get an update on the situation.
- 4:53She can immediately tell things aren't good,
- 4:55and this is confirmed when Haynes tells her
- 4:57to ready the cabin for an emergency landing.
- 5:01Once she returns and begins instructing
- 5:03the other flight attendants to follow suit, she is stopped
- 5:06by a passenger sitting near the back of first class.
- 5:10He asks for information about what is going on
- 5:14and he seems relatively calm given the situation.
- 5:18That is because he is no ordinary passenger.
- 5:22His name is Dennis Fitch and he himself is a pilot,
- 5:26but not just any pilot.
- 5:28Fitch is actually a flight instructor for the DC-10,
- 5:32the very aircraft that they are onboard.
- 5:35The flight attendant tells him
- 5:37that the rear engine has shut down
- 5:39and that the captain has reported
- 5:40that all hydraulics are lost.
- 5:43Now, Fitch can't believe what he's hearing
- 5:45as he knows this aircraft in and out
- 5:48and understands just how unlikely that could be.
- 5:52And yet if it is true, he also knows
- 5:54that they are almost certainly doomed
- 5:56because he has studied a previous flight
- 5:59that has had this exact same problem.
- 6:02(airplane whooshing) (dramatic music)
- 6:07Just four years before United Flight 232 departed
- 6:10on its fated flight, Japan Airlines Flight 123 takes off
- 6:14from Tokyo en route to Osaka.
- 6:18It'll be a short flight, about one hour,
- 6:21but nonetheless, the journey will be made on a Boeing 747.
- 6:26These aircraft are known for their large size
- 6:29and are more typically used for long distance flights.
- 6:33However, this particular 747 variant
- 6:36is one specifically requested by Japan Airlines
- 6:39in response to high demand for certain domestic routes,
- 6:42such as between Tokyo and Osaka.
- 6:45With this model, fuel capacity is reduced in exchange
- 6:48for strengthening the structure of the aircraft
- 6:51to accommodate more frequent takeoffs and landings.
- 6:55And because it will be used for shorter flights,
- 6:57the business class section is reduced
- 6:59and the economy section is increased,
- 7:02allowing for more seats overall.
- 7:05No other airplane type had a higher capacity at the time
- 7:09as this 747SR carried a staggering 524 people
- 7:14on this flight.
- 7:16But what no one on board knows
- 7:18is that something is happening in the back of the plane.
- 7:23Just a few years prior,
- 7:25this particular 747 was involved in a hard landing
- 7:28that resulted in a tail strike.
- 7:31There were even some injuries but no casualties
- 7:34and the plane needed some serious repairs,
- 7:37especially to the pressure bulkhead
- 7:39in the back of the plane.
- 7:42This is a curved wall that separates the pressurized air
- 7:45in the cabin from non-pressurized air, acting as a seal.
- 7:50Now, half of this bulkhead was damaged
- 7:52during the tail strike, and so repairs were carried out.
- 7:55The lower half dome of this bulkhead was therefore replaced,
- 8:00but this is where the fix wasn't done properly.
- 8:04In the correct installation, a single splice plate is used
- 8:07to connect both the upper and lower half of the bulkhead.
- 8:11This way, the loads are transmitted evenly
- 8:14across three rows of rivets.
- 8:16But during the repair, instead of using one single sheet,
- 8:20the splice plate was cut into two parts.
- 8:23This is a big mistake.
- 8:26The top rivet is essentially not carrying any load
- 8:29as it's not even connected to the lower bulkhead anymore.
- 8:33And so with each flight after the repair,
- 8:36cracks began to form around this area,
- 8:38and every flight the plane took,
- 8:40pressurizing and depressurizing the cabin,
- 8:42the cracks grew worse and worse.
- 8:45It was only a matter of time
- 8:47until the bulkhead couldn't hold anymore.
- 8:52(dramatic music)
- 8:53Only 12 minutes into Flight 123,
- 8:56all 524 occupants feel an explosive decompression
- 9:00as the pressure bulkhead fractures.
- 9:03Pressurized air rushes into the space behind the bulkhead,
- 9:07an area not designed
- 9:08to handle the instantaneous pressure change.
- 9:11This causes more ruptures in the back of the plane
- 9:14and the vertical tail fin blows off the aircraft.
- 9:17(fin exploding)
- 9:20- [Flight Crew 1] Hey, something has exploded!
- 9:24Squawk 77.
- 9:25The gear door! Check the gears.
- 9:26- What? - Check the gears!
- 9:28- The engine? - Squawk 77.
- 9:30- [Host] The explosion is so sudden
- 9:32that everything takes place in less than half a second
- 9:35and oxygen masks drop as the cabin becomes depressurized.
- 9:39(flight crew speaking in Japanese)
- 9:44- The flight crew immediately calls out
- 9:46to the Tokyo control tower
- 9:48and requests authorization to return to the airport.
- 9:52- [Control Tower] Tokyo, Japan Air 123,
- 9:56request, immediate, ah,
- 10:00ah, trouble, request to return back to Haneda.
- 10:04Descend and maintain 220. Over.
- 10:06- [Captain] Roger, approved as you requested.
- 10:08- Permission is granted,
- 10:10though now the crew realizes a problem
- 10:14because just like United Flight 232,
- 10:17all hydraulic lines have been severed in the explosion
- 10:20caused by shrapnel flying out in the section
- 10:22where the lines come close together.
- 10:24The plane has become unflyable.
- 10:27(airplane engine roaring)
- 10:29- [Flight Crew] All the hydraulic systems have gone dead?
- 10:32But, now uncontrollable.
- 10:36- [Flight Crew] Uncontrollable, roger, understood.
- 10:40- With no controls and now a missing tail fin,
- 10:43the plane begins dipping forward and back.
- 10:48This is called phugoid motion.
- 10:52Essentially, as the plane descends, it gains air speed,
- 10:57but this additional speed causes lift,
- 11:00which makes the plane climb.
- 11:03With no control surfaces to correct this motion,
- 11:07the plane continuously rises
- 11:09and dips in a wave-like pattern.
- 11:13The flight crew realizes
- 11:14that the only control they still have left is engine thrust,
- 11:18and so they begin increasing
- 11:19and decreasing the plane's four engines,
- 11:22an attempt to steer back to towards Tokyo.
- 11:24If they want to take a right turn,
- 11:27they increase power on the left engines
- 11:30and lower power on the right.
- 11:33It is an extremely difficult process,
- 11:35but even still, the crew is able
- 11:37to make some progress in getting turned around
- 11:39to head back to Haneda Airport,
- 11:41and they are decreasing their altitude.
- 11:44But now they have yet another problem looming ahead of them:
- 11:48the Japanese Alps.
- 11:49(plane whooshing) (warning beeping)
- 11:53- [Flight Crew 1] Hey, there's a mountain ahead.
- 11:53- [Flight Crew 2] I know.
- 11:56- [Flight Crew 1] Turn right. It's a mountain there.
- 11:58- [Flight Crew 2] I know, Sir.
- 11:59- [Flight Crew 1] Take control, to the right, right turn!
- 12:03- [Flight Crew 2] Right turn, that's right?
- 12:04- We could hit the mountain. - I know.
- 12:06- [Flight Crew 1] Right turn.
- 12:08(plane warning beeping) Left turn.
- 12:11Put more power on. Left turn now!
- 12:14Left turn! (dramatic music)
- 12:16- With little ability to control the plane,
- 12:18the crew do all they can to avoid the mountains.
- 12:22Ultimately, there's nothing that can be done.
- 12:26Bracing for impact,
- 12:28the plane crashes into a ridge just north of Mount Mikuni
- 12:32after nearly 30 minutes of flying an uncontrollable plane.
- 12:37(plane warning beeping)
- 12:40- [Flight Crew 1] Nose up!
- 12:43Power! (plane warning beeping)
- 12:47- [Airplane] Bank angle. (plane alarms blaring)
- 12:49Pull up!
- 12:51Pull up!
- 12:53- [Crew Member 1] It's the end!
- 12:55- [Plane] Pull up.
- 12:57Pull up. (plane crashing)
- 13:02(pensive music)
- 13:08- Rescuers immediately dispatch to the area.
- 13:12But the situation is dire.
- 13:15The 747 crashed high in the mountains,
- 13:18far past the point any road or path would reach.
- 13:20And with the sun taking away the last bit of daylight,
- 13:23it is virtually impossible
- 13:25to land a helicopter near the crash site.
- 13:28After flying over the burning debris,
- 13:30rescuers believe it is impossible
- 13:32that anyone could have survived.
- 13:36Nearly 14 hours after the crash, with the rising sun,
- 13:40rescuers finally reach the crash site
- 13:43and here they discover a miracle: movement.
- 13:48They find a woman alive, though severely injured,
- 13:51and now seeing there is hope, the search is energized
- 13:54and they find a child stuck in a tree.
- 13:57Searching more, they also find a mother
- 13:59and her daughter alive, trapped under debris.
- 14:04Though miraculous that four people have survived,
- 14:07it is coupled with the devastating realization
- 14:09that all 520 other occupants of Flight 123 have perished.
- 14:15And even more tragic is that doctors would later determine
- 14:18that more could have survived
- 14:20if rescuers had reached the crash site sooner.
- 14:23And with so many casualties,
- 14:25this crash becomes the deadliest one
- 14:26involving a single plane in history, even until this day.
- 14:31(screen whooshing) (pensive music)
- 14:34Back on board United Flight 232, just four years later,
- 14:38Flight Instructor Denny Fitch is more aware
- 14:41of this than any other passenger.
- 14:44Knowing that the Japan Airlines flight faced the same issue
- 14:47of losing all hydraulics,
- 14:49Fitch decides to offer his assistance to the flight crew,
- 14:52help that Captain Haynes readily accepts.
- 14:57- [Flight Crew 1] Very little elevator or rudder.
- 15:00Ah, shit.
- 15:02- [Flight Crew 2] I'll tell you what.
- 15:03We'll have a beer when this is all done.
- 15:04- [Flight Crew 1] Well, I don't drink
- 15:05but I'll sure as hell have one.
- 15:06Little right turns. (dramatic music)
- 15:09- [Host] Haynes explains to Fitch
- 15:10that they have been using differential engine thrust
- 15:13to fly until this point.
- 15:16- [Flight Crew 1] Come on, baby.
- 15:18- [Flight Crew 3] What's the hydraulic quantity?
- 15:19- [Flight Crew 4] Low zero.
- 15:20- All of them? - All of them.
- 15:22- [Flight Crew 1] Quantity, quantity is gone.
- 15:23- [Flight Crew 4] Yeah, all quantity is gone.
- 15:26- And Captain Haynes instructs Fitch
- 15:28to take over so that he and Copilot Records
- 15:31can focus on other potential methods
- 15:33to get the plane safely to the ground.
- 15:35- [Flight Crew 2] Tell me, yell what you want
- 15:36and I'll help you.
- 15:37- [Flight Crew 1] Right throttle. Close one, put two up.
- 15:40- [Host] And so Fitch stands between the two pilots,
- 15:43a throttle in each hand, increasing
- 15:45and decreasing each based on visual cues
- 15:48and commands from Captain Haynes.
- 15:50- [Flight Crew 2] United 232 heavy. I understand, sir, uh...
- 15:54You can only make right turns?
- 15:56- [Flight Crew 1] That's affirmative.
- 15:57- With over 400 miles left until they reach Chicago,
- 16:01the crew realizes that they will never make it.
- 16:04And with help from air traffic control,
- 16:06they locate a closer airport they can aim for,
- 16:08located in Sioux City, less than 100 miles away.
- 16:12- [Flight Crew 1] I have serious doubts
- 16:13about making the airport.
- 16:15Have you got someplace near there
- 16:19that we might be able to ditch?
- 16:20Unless you get control of this airplane,
- 16:21we're gonna put it down wherever it happens to be.
- 16:24- He instructs the flight attendants to prepare everyone
- 16:27for a hard crash landing.
- 16:29- [Flight Crew 1] We're gonna try and put it
- 16:30into Sioux City Iowa. - Yeah.
- 16:31- [Flight Crew 1] It's gonna be tough, it's gonna be rough.
- 16:34- [Flight Attendant] So we're going to evacuate for sure?
- 16:35- [Flight Crew 1] The brace.
- 16:36The brace will be the signal.
- 16:37It'll be over the PA system. Brace, brace, brace.
- 16:40Good luck, sweetheart. - Thanks, you too!
- 16:43(tranquil music)
- 16:44- [Host] Back in the cabin,
- 16:45the flight attendants begin instructing passengers
- 16:48on the positions to maintain
- 16:49when it's time to brace for impact.
- 16:52And as they look around,
- 16:53they are hit with the startling realization
- 16:56of just how many children are on board.
- 17:00As luck would have it,
- 17:01today is Children's Day, a promotion from United
- 17:06where children can fly for only a penny.
- 17:09There are 52 minors on Flight 232
- 17:13and many of them are traveling alone.
- 17:16(tranquil music)
- 17:18The flight attendants ask
- 17:20for help from several adult passengers
- 17:22and everyone cooperates to make sure
- 17:24that no child is sitting by themselves.
- 17:27Next, they turn to the four children who were young enough
- 17:30to travel without a seat, those under two years old.
- 17:34The crew has no choice
- 17:36but to continue following procedure
- 17:38and have their parents place their children on the floor
- 17:41in front of them and surround the children with pillows
- 17:44and hope for the best.
- 17:47- [Flight Control] United 232 heavy,
- 17:48you're gonna have to widen out just slightly
- 17:50to your left, sir, to make the turn to final
- 17:53and also it will take you away from the city.
- 17:55- [Flight Crew 1] Whatever you do,
- 17:56keep us away from the city.
- 17:58- Back in the cockpit,
- 17:59the flight crew is steadily making way towards Sioux City,
- 18:03but the plane keeps pulling to the right.
- 18:06And so deciding it would be best not to fight it,
- 18:09they corkscrew their way forward
- 18:12with help from ATC providing directions
- 18:14and heading information.
- 18:16They also begin dumping as much fuel as they can,
- 18:19trying to decrease their weight before landing.
- 18:23And after two right-hand circles,
- 18:25it's time to do their first left turn
- 18:28in order to line up with the airport.
- 18:31(suspenseful music)
- 18:34But even after completing that turn,
- 18:36the plane still keeps drifting
- 18:38to the right, off the path towards the airport.
- 18:42And so rather than keep fighting it, the crew decides
- 18:45to do another right-hand loop to get back on track.
- 18:50- [Air Traffic Control] United 232 heavy, roger.
- 18:52The airport's currently
- 18:53at your 1 o'clock position, 10 miles.
- 18:58And United 232 heavy,
- 18:59if you can't make the airport, sir, there is an interstate
- 19:02that runs north to south to the east side of the airport.
- 19:06It's a four-lane interstate.
- 19:07- [Flight Crew 1] We're just passing it right now.
- 19:08We're gonna try for the airport.
- 19:10- Finally, about nine miles out of Sioux City,
- 19:13the pilots make visual contact with the airport.
- 19:17They've managed to make it this far,
- 19:19but now they have the worst yet to come
- 19:22as they still need to land.
- 19:24One other problem is that without the hydraulics,
- 19:26the flaps which allow the aircraft
- 19:28to fly at much slower speeds for takeoff
- 19:30and landing cannot be extended.
- 19:33They are, however, able to manually lower the landing gear,
- 19:37letting gravity do the work of locking the wheels in place.
- 19:40And the extra drag from the landing gear
- 19:42helps reduce their speed a bit,
- 19:44but not by much as they are still going more
- 19:47than double the speed of a typical landing.
- 19:52The entire airport lays open before them
- 19:55with every runway available.
- 19:57Sioux City Airport has three runways,
- 20:00but only two of them were active at the time
- 20:03as runway 2/2 had been closed permanently a year earlier.
- 20:07The crew hopes to use runway 3/1,
- 20:10therefore the closed runway 2/2 is used
- 20:12by emergency responders to set up
- 20:15and prepare themselves to assist
- 20:16for what they know will be a bad landing.
- 20:19But just two minutes before a touchdown,
- 20:22Captain Haynes realizes that they aren't lined up at all
- 20:25for runway 3/1
- 20:27and they don't have time to make corrections.
- 20:30But as luck would have it,
- 20:32they are lined up almost perfectly with runway 2/2.
- 20:37- [Air Traffic Control] United 232 heavy,
- 20:38the wind's currently 360 at 1 1, 360 at 11.
- 20:41You're cleared to land on any runway.
- 20:43(flight crew member 1 chuckling)
- 20:44- [Flight Crew 1] You wanna be particular
- 20:45make it a runway, huh?
- 20:47- [Air Traffic Control] 0 1 0 at 1 1
- 20:49and there is a runway that's closed, sir
- 20:51that could probably work too.
- 20:53It runs northeast to Southwest.
- 20:56Pretty well lined up on this one, I think we will be.
- 21:00- [Host] Immediately responders rush
- 21:01to clear the closed runway and make way for the plane.
- 21:05- [Air Traffic Control] Sir, that's a closed runway.
- 21:06That'll work, sir.
- 21:07We're getting the equipment off the runway
- 21:08and they'll line up for that one.
- 21:10- [Flight Crew 1] How long is it?
- 21:12- [Air Traffic Control] At the end of the runway,
- 21:13it's just a wide open field, sir,
- 21:15so the length won't be a problem.
- 21:17- And with nothing left they can do,
- 21:18everyone straps in
- 21:20and Captain Haynes calls out to the passengers
- 21:23to brace themselves.
- 21:26- [Flight Crew 2] That's what's turning ya.
- 21:27- OK. - Back, Al.
- 21:28Left throttle, left, left, left, left, left, left, left.
- 21:32(plane warning blaring)
- 21:32- [Plane] Pull up, pull up, pull up.
- 21:37- [Flight Crew 1] God!
- 21:40- [Helper 1] Buddy to 19,
- 21:41he's coming down real fast down the south end.
- 21:44- [Helper 2] Okay, all right, he's going down.
- 21:45There he goes. - He's on fire.
- 21:48(sad music)
- 21:52- Unfortunately, despite the crew's best efforts,
- 21:55the uncontrollable plane finally gets the best of them.
- 22:00Just above the ground,
- 22:02the plane dips sharply to the right
- 22:04and the right wing strikes the ground.
- 22:08The plane immediately begins breaking apart
- 22:10and ignites in a fireball
- 22:12as the wreckage continues skidding down the runway
- 22:15and into nearby cornfields.
- 22:19Emergency responders rush to the scene
- 22:21and everyone fears it'll be just like Japan Airlines
- 22:24all over again.
- 22:26And yet, as they approach,
- 22:28passengers begin streaming out of the wreckage.
- 22:31Responders begin evacuating
- 22:33and attending to any survivors they can find,
- 22:36and survivors themselves also assist each other.
- 22:40One man escapes the burning wreckage
- 22:43only to hear a baby crying from somewhere in the plane.
- 22:47Risking his own life, he goes back in
- 22:50and finds a baby, which somehow during the impact
- 22:53became trapped in an overhead bin.
- 22:56He is able to escape with the child,
- 22:59reuniting her back with her mother.
- 23:02And outside responders also attempt to locate the cockpit,
- 23:07which broke apart during the impact.
- 23:10It takes them 40 minutes,
- 23:12but finally they discover its broken and charred remains
- 23:16after seeing Flight Engineer Dvorak waving his arms
- 23:19from the wreckage.
- 23:20Captain Haynes, Copilot Records, Flight Engineer Dvorak
- 23:24and Flight Instructor Fitch are all alive,
- 23:27though in critical condition.
- 23:30They are freed from the wreckage
- 23:32and join the other survivors who are now being raced
- 23:35to the nearby trauma center.
- 23:37(tranquil hopeful music)
- 23:41By the end of the rescue efforts, it's a bitter moment.
- 23:45113 people perished after the crash, including 11 children.
- 23:51It is a situation
- 23:52that no one should have walked away from,
- 23:55a crash that seemed impossible to survive.
- 23:58And yet 183 people made it.
- 24:02A combination of skill from the crew, good communication,
- 24:06and a little bit of luck meant that more than half
- 24:08of Flight 232 live to see another day.
- 24:13Now, both these crashes unfolded
- 24:14under completely different circumstances.
- 24:17The United Flight lost its hydraulics over one
- 24:19of the flattest parts of the United States
- 24:22while Japan Airlines found itself over mountainous terrain.
- 24:25They were flying different aircraft
- 24:27with vastly different mass and control characteristics.
- 24:31And crucially, Japan Airlines
- 24:33had lost its vertical stabilizer, a failure
- 24:36that made a controlled landing physically impossible.
- 24:40And the fact that the crew managed
- 24:41to keep the aircraft in the air
- 24:42for over half an hour is nothing short of extraordinary.
- 24:46(happy music)
- 24:48But what these two incidents do have in common
- 24:50is that they reveal just how catastrophic the loss
- 24:53of all hydraulics can be.
- 24:56And they also have something else in common.
- 24:59To this day, both incidents are regarded as some
- 25:02of the most remarkable examples of pilot skill.
- 25:06United 232 is often cited as one of the clearest examples
- 25:09of crew resource management in action,
- 25:12a captain, first officer, flight engineer,
- 25:15and even a training captain all working together,
- 25:18sharing control inputs and communicating constantly.
- 25:22(pensive music)
- 25:24But aviation didn't always operate that way.
- 25:26And, in fact, the culture that made that kind
- 25:29of collaboration possible was born out of tragedy.
- 25:33One famous example of bad communication leading to tragedy
- 25:37is the Tenerife disaster in 1977
- 25:41when two 747s filled with passengers
- 25:44collided almost head on on the runway,
- 25:47the absolute worst case scenario.
- 25:52(flight engineer speaking in foreign language)
- 25:55(captain speaking in foreign language)
- 25:58(flight engineer speaking in foreign language)
- 26:01- And to understand how this happened,
- 26:03I created a full-length video
- 26:05detailing the exact radio exchanges
- 26:07and mapping out the chain of events
- 26:09that led to the collision.
- 26:12This video is part of an entire series
- 26:15of videos I created called "Under Exposure."
- 26:19In this series, I created in-depth documentaries
- 26:21about high-stakes events that reshaped our world.
- 26:25And this series is exclusive to Nebula,
- 26:27which is a streaming service that I am building
- 26:30to gather with other like-minded creators.
- 26:33Now, the idea behind Nebula
- 26:35is to let creators you already watch on YouTube
- 26:38make the stuff they really wanna make,
- 26:41bigger, higher budget, and without relying on ads
- 26:47with exclusive films and documentaries from me,
- 26:50Wendover Productions, Tom Scott,
- 26:52Lindsay Ellis, Real Engineering, and many, many more.
- 26:57So go to nebula.tv/neo
- 26:59and make sure you use exactly this link
- 27:01to get 50% off an annual subscription.
- 27:04That brings it down to just $30 a year
- 27:07to access all the amazing videos on Nebula.
- 27:10And as always, thanks for the support
- 27:13and thank you so much for watching this video.
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