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atypical
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Joined: Mon Aug 18, 2014 12:28 am

FZ 981 Preliminary Report

Thu Apr 21, 2016 3:39 pm

http://mak-iac.org/upload/iblock/310...m%20Report%20A6-FDN%20%28en%29.pdf

At a height of 900 m there was a simultaneous control column nose down input and stabilizer nose down deflection from -2,5 deg (6,5 units) to +2,5 deg (1,5 units) (the FDR recorded a nose down stabilizer input from the stabilizer trim switch of the control wheel lasting 12 seconds, while the CVR record contains a specific noise of rotation of the trim wheels located on both sides of the central pedestal), as a result the aircraft, having climbed to about 1000 m, turned into descent with negative vertical acceleration of -1g. The following crew recovery actions did not allow to avoid an impact with the ground.
At 00:41:49 the aircraft hit the runway about 120 m from the threshold with a speed of over 600 kmph and over 50 degrees nose down pitch.
 
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AirlineCritic
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RE: FZ 981 Preliminary Report

Thu Apr 21, 2016 10:47 pm

This is horrible:

Quote:

4295 samples of biological matter were found and recovered from the accident site

This would imply that the 62 persons on board were broken on the average to 69 pieces each.

Unbearable to think about that.
 
airplanedaj
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RE: FZ 981 Preliminary Report

Fri Apr 22, 2016 12:02 am

Interesting read. It seems like a stall is unlikely, as airspeed was around 200 kts, unless ice was encountered (doesn't seem to be the case), which leads me to wonder what the reasoning is for the nose-down movements?
 
OMP777X
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RE: FZ 981 Preliminary Report

Fri Apr 22, 2016 3:00 am

This thread is still up and running on this forum: FlyDubai B738 Crashes On Approach In Russia Part 4 (by lightsaber Apr 5 2016 in Civil Aviation)

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OMP777X
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