Cool Cockpit Voice Recording (CVR) - Delta Flight 1141

gsaldivar

Diamond Member
Apr 30, 2001
8,691
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Delta flight 1141 was preparing to depart Dallas/Ft. Worth airport on the afternoon of August 31, 1988. The 727 was loaded with 108 people as it lined up for takeoff on runway 18L. The takeoff began normally as the aircraft accelerated down the runway. Just after the aircraft rotated, it began to roll and stalled, dropping back to the ground. It slid along through the approach lights and came to rest nearly 3/4 mile from the end of the runway. A fire broke out on impact, killing 14 people.

The Captain, who survived the crash, reported that the takeoff was normal until the point of rotation when he heard two loud bangs and decelleration. This was followed by what he reported as violent rolling. Recovery of the aircraft's FDR showed that niether the flaps nor the slats had been properly configured for takeoff. Because of this, the aircraft could not generate enough lift at the normal rotation airspeed.

Readout of the CVR showed that the crew had been engaged in talk with the flight attendents prior to takeoff and had not ever completed the checklist. Ironically, the crew had even jokingly told the flight attendents that they were getting their voices on the CVR "in case we crash", so that investigators would have something to listen to. The aircraft has installed a system which warns of improper takeoff configuration, but the system apparently failed prior to the accident. Investigators also cited Delta's lack of proper crew checks and standardization procedures and the FAA's failure to enforce them.


Warning: Audio recording ends graphically:


LINK

LINK2
 

Rudee

Lifer
Apr 23, 2000
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Originally posted by: gsaldivar

The Captain, who survived the crash, reported that the takeoff was normal until the point of rotation when he heard two loud bangs and decelleration.


What is this "point of rotation" he is referring to? I'm confused, as I've never heard this phrase in respect to an aircraft taking off.

Edit: ah, nevermind. It's the aircraft that rotated and crashed. I missed that part.
 

Squisher

Lifer
Aug 17, 2000
21,204
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?

Very disturbing though.
 

bsobel

Moderator Emeritus<br>Elite Member
Dec 9, 2001
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Originally posted by: Rudee
Originally posted by: gsaldivar

The Captain, who survived the crash, reported that the takeoff was normal until the point of rotation when he heard two loud bangs and decelleration.


What is this "point of rotation" he is referring to? I'm confused, as I've never heard this phrase in respect to an aircraft taking off.

Edit: ah, nevermind. It's the aircraft that rotated and crashed. I missed that part.

The rotation speed of an aircraft refers tot the velocity at which the aircraft cab begin to rotate its nose into the air. Rotation here refers to that, the point where the pilots begin trying to lift her nose off the tarmac.

Bill
 

gsaldivar

Diamond Member
Apr 30, 2001
8,691
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Originally posted by: Squisher
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Try the second link. :)