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1979 Worst air crash in U.S. history (Read 352 times)
May 25th, 2004 at 10:46am

Felix/FFDS   Offline
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I still remember the photo of the inverted DC-10.  I thought, however, that there had been one survivor, a little baby girl found under the bodies of her parents.  A sad day indeed.


From the History Channel
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May 25, 1979 Worst air crash in U.S. history


On Friday afternoon, Memorial Day weekend, American Airlines Flight 191, a Los Angeles-bound DC-10, takes off at 3:03 p.m. from Chicago-O'Hare International airport with 271 aboard. As Flight 191 raised its nose during the initial stage of the takeoff, an engine under the left wing broke off with its pylon assembly and fell to the runway. The aircraft climbed to about 350 feet above the ground and then began to spin to the left, continuing its leftward roll until the wings were past the vertical position, with the nose pitched down below the horizon. Moments later, the aircraft crashed into an open field about a half-mile from its takeoff point, killing all 271 people aboard and two others in a nearby trailer park. It was the worst domestic air crash in U.S. history.

 

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Reply #1 - May 25th, 2004 at 11:22am

Craig.   Offline
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definatly a sad day in aviation history. The one good thing to come from it was a huge overhaul of the DC10's engine attachments which also showed up many of the same problems, saving many more lives.
 
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Reply #2 - May 25th, 2004 at 11:42am

Hagar   Offline
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Terrible. Your mention of the baby reminds me of an accident with a 727 at Gatwick. http://www.planecrashinfo.com/cvr690105.htm
It came down in the early hours somewhat short of the runway. I believe this was the worst crash in the history of Gatwick & 50 of 65 aboard and 2 on the ground were killed. As bad luck would have it the aircraft crashed on the only house in the area, killing the adult occupants as they slept. Their baby daughter was found crying in her cot among the wreckage without a scratch. That baby girl is now grown up & married to the twin brother of a chap I used to work with.

It might seem stupid but after this incident & several disasters involving the DC-10 I never trusted airliners with 3 engines. Roll Eyes
 

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Reply #3 - May 25th, 2004 at 12:58pm

Craig.   Offline
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personally i try to fly these as much as possible. I am trying to book my trip to the US in june around a flight on Northwests DC10 it will likely be the last time i get to travel on one as october northwest take the DC10 off the route for the A330 Cry
 
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Reply #4 - May 25th, 2004 at 1:16pm

Felix/FFDS   Offline
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Quote:
It might seem stupid but after this incident & several disasters involving the DC-10 I never trusted airliners with 3 engines. Roll Eyes



But if you could cop a rid in a tri-engined Moth, Argosy, or and "Auntie Ju", you'd jump at the chance!
 

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Reply #5 - May 25th, 2004 at 1:31pm

Hagar   Offline
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Quote:
But if you could cop a rid in a tri-engined Moth, Argosy, or and "Auntie Ju", you'd jump at the chance!

Exactly. Grin

PS. I don't think there was a tri-engined Moth.
 

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Reply #6 - May 25th, 2004 at 1:54pm

ozzy72   Offline
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Pretty scary huh?
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Nope but there is always the Ju-52 Grin
I can remember this, as it was about a week after we moved to San Diego, and there was nothing else on the news, and we had just spent a few weeks in Chicago because of my dads business.

Ozzy Sad
 

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Reply #7 - May 25th, 2004 at 2:05pm

Hagar   Offline
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Nope but there is always the Ju-52 Grin

Fondly known as "Tante Ju" or the "Auntie Ju" Felix mentioned. Wink
 

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Reply #8 - May 25th, 2004 at 2:17pm

ozzy72   Offline
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Oh I thought that was some kind of Spanish joke Embarrassed
Live and learn eh? Grin
 

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Reply #9 - May 25th, 2004 at 2:26pm

Hagar   Offline
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Oh I thought that was some kind of Spanish joke EmbarrassedLive and learn eh? Grin

Never mind. We're all learning more every day. I'm waiting for Felix to correct me on that tri-engined Moth. Roll Eyes Wink
 

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Reply #10 - May 25th, 2004 at 2:49pm

Felix/FFDS   Offline
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Quote:
Never mind. We're all learning more every day. I'm waiting for Felix to correct me on that tri-engined Moth. Roll Eyes Wink



http://www.airlinepictures.net/photopost/showphoto.php?photo=641

I still call it a Moth - DH.66 Hercules "Moth"
 

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Reply #11 - May 25th, 2004 at 2:56pm

Hagar   Offline
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Quote:
I still call it a Moth - DH.66 Hercules "Moth"

There you go. What did I tell you? Shows what I know. LOL Roll Eyes Cheesy

On another tack. I spotted a stand at Abingdon on the old Handley Page HP 42 airliner. It seems they're planning on building a replica. Same crowd that did the Vickers Vimy. Pity I didn't pick up a leaflet.
 

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Reply #12 - May 25th, 2004 at 3:41pm

Fly2e   Offline
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I am familiar with this accident. I can't imagine looking out your window as the aircraft is taking off, as many of do, and watching the engine come lose from the pylon while it flies itself up and over the wing!  Undecided


Friday May 25, 1979, was a pleasant sunny day in Chicago, Illinois. It was the eve of the Memorial Day Weekend and Chicago's O'Hare International Airport was even busier than usual. At the gate, American Airlines flight 191 was preparing to depart to Los Angeles. Flight 191 had been operated by American's DC-10s since they entered service some eight years earlier. The DC-10-10 seated 270 passengers in a mixed class configuration and was very popular with travelers and the company's flight and cabin crew. The aircraft allocated for today's flight was N110AA, delivered to the airline on 02.28.72. It had proven itself an excellent aircraft and had flown nearly 20,000 hours since its delivery.

In command of today's flight was Walter Lux, 53, an extremely experienced pilot who had 22,000 hours to his name and had been flying DC-10s since their introduction to American Airlines. His crew were First Officer James Dillard, 49,  who had almost 10,000 hours ,and Flight Engineer Alfred Udovich, 56,  who had 15,000 hours. A cabin crew of ten attended to the passengers.

At 2.59pm the DC-10 was cleared to taxi to the holding point for runway 32R. At 3.02pm the DC-10 was cleared for take off and at a weight of 379,000 pounds started its take off run. Everything was normal during its run until, 6000 feet down the runway just before rotation, the port engine (No.1) lost power and pieces of the pylon started to fall away from the aircraft. By then, white vapour began to stream from the mounting, which was the fuel spilling from the broken fuel lines.

A few moments later the entire engine and pylon tore itself loose and toppled back over the wing and on to the tarmac behind the aircraft. As the DC-10 lifted off the port wing had dropped slightly but this was soon corrected and the aircraft climbed out steadily seemingly unaffected by the loss of one of its engines .

10 seconds later and at a height of around 300 feet it began to bank to the left. The bank quickly steepened, the nose dropped, and the aircraft started to lose height. Finally the wings went past the vertical and the aircraft was beyond recovery. The port wingtip struck the ground and the aircraft exploded in a mass fireball and disintegrated completely, 90 metres from a huge caravan park that was a few hundred metres from the end of the runway. Two residents of this park were killed in the carnage, along with the 271 on board the aircraft.

... ...

Investigation into the Accident:

Under normal circumstances an aircraft losing an engine would be able to fly on the remaining power plants still functioning, so why was this accident different? When the engine separated, it took a 3 foot section of the wing with, it ripping out vital hydraulic and electric lines in the process. The starboard slats stayed extended but the port slats retracted because of the leaking fluid, causing a stall. The crew was unaware of the retraction due to the fact that the no.1 generator powered the Captain's instrument panel, and thus the slat disagreement system. The stick-shaker had also been disabled.

On recovery of the engine/pylon assembly, it was discovered that there was a 10 inch fracture on the rear bulkhead on the pylon. 8 weeks before the accident, the aircraft went through a major check and the self aligning bearings on the bulkhead to wing attachment joints were changed. Normal procedures would involve removing the engine and pylon from the wing separately, by use of a special cradle to lower the engine, but to save on time, a new idea was adapted using a forklift truck to take the whole assembly off as one unit. This did not prove to be a good idea because of down travel on the forks. When the assembly was being put back on to the wing, a disagreement occurred between the mechanic and the forklift driver, and a sound like a gun shot was heard, which resulted in the flange on the pylon bulkhead fracturing.  Unknown to the mechanics, the aircraft was put back into service with a weakened pylon assembly that seemed to be OK until that fateful afternoon when it failed under normal load conditions.

... ...


Dave  Undecided
 

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Reply #13 - May 26th, 2004 at 8:04am

Hagar   Offline
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I find this part of the investigation report quite frightening. even more so when they were trying new maintenance procedures for the first time. I find it hard to believe that it would be carried out without a senior engineer present or that any responsible engineer/mechanic would let something like this go without reporting it. Shocked

Quote:
8 weeks before the accident, the aircraft went through a major check and the self aligning bearings on the bulkhead to wing attachment joints were changed. Normal procedures would involve removing the engine and pylon from the wing separately, by use of a special cradle to lower the engine, but to save on time, a new idea was adapted using a forklift truck to take the whole assembly off as one unit. This did not prove to be a good idea because of down travel on the forks. When the assembly was being put back on to the wing, a disagreement occurred between the mechanic and the forklift driver, and a sound like a gun shot was heard, which resulted in the flange on the pylon bulkhead fracturing. Unknown to the mechanics, the aircraft was put back into service with a weakened pylon assembly that seemed to be OK until that fateful afternoon when it failed under normal load conditions.
 

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Reply #14 - May 26th, 2004 at 11:04am

Fly2e   Offline
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I totally agree Doug!
It is obvious that something snapped, why the noise then? What,... did they just turn their heads the other way and think nothing would happen?
Jeez, somebody should be held ACCOUNTABLE!

Dave
« Last Edit: May 27th, 2004 at 11:30am by Fly2e »  

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