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Old 20th November 2000 | 19:25
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rjemery
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Question Jackscrew End Stop Probably Cause of AS 261 Crash

The Seattle Times (Washington state, USA), via ABC News reports that an NTSB investigator, through simulation, found that the end stop on the jackscrew of the MD-80 is now believed to be the proximate cause of the final and fatal plunge of AS 261 on 1/31/00. When the end stop broke, it permitted the stabilizer to tilt 22 degrees, far in excess of the maximum 2.2 degrees tilt. A stabilizer tilt of 22 degrees matches the flight data.

It all seems so neat. Can other explanations still exist? How perfect are flight simulators in replicating such data?

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R. J. Emery