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Plane crashes near Kazakhstan airport

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Plane crashes near Kazakhstan airport

Old 7th Jan 2020, 14:12
  #141 (permalink)  
 
Join Date: Feb 2000
Location: Limbricht
Posts: 2,140
The preceding aircraft apparently rolled 1 min and 50 secs ahead of the Fokker. It is also evident that the surface wind was calm. If that is indeed so, then wake turbulence cannot be entirely ruled out just yet.
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Old 7th Jan 2020, 14:28
  #142 (permalink)  
 
Join Date: Sep 2002
Location: La Belle Province
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Originally Posted by gearlever View Post
There is an update on AvH with additional data from FDR.

Very strange IMHO......
IAS zero until 33 sec on take off run, thereafter suddenly 148 kt, spurious wind speeds of 96 kt multiple times during T/O, N1 of both eng below 40% at 45 until 54 sec.... spooky.
Bek F100 at Almaty on Dec 27th 2019
I'll take a wild guess that they are plotting FMS-derived parameters, which are probably garbage with respect to instantanoeus winds (typically FMS winds are intended for longer term navigational purposes) and garbage with regard to wind on the ground (since the logic won't be set up to deal with the ground case) and possibly the "speed" is again only set up for en route navigation intentions.

I'll also note that none of the parameters have a unit identified for the scale, so things could well be in metric units, given the location.

Assuming the angular terms are in degrees, 12-15 degrees of pitch and AOA both sound pretty high for a non-slatted aircraft. Especially in ground effect....
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Old 7th Jan 2020, 16:19
  #143 (permalink)  
 
Join Date: Sep 2001
Location: Toronto
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Maybe the explanation for zero airspeed is that it took 33 seconds for the pitot blockage to melt off. And maybe the engine probes were iced up as well.
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Old 12th Jan 2020, 18:28
  #144 (permalink)  
 
Join Date: Jan 2008
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After readouts of FDR and CVR, investigating committee announces preliminary results "point in direction of icing." Wings were not de-iced.

After first lift-off attempt and rocking wings and settling back on runway, FO/PM calls reject and retards thottles, PIC/PF says "No need. Let's go, let's go." and firewalls throttles.

Accident: Bek F100 at Almaty on Dec 27th 2019, lost height shortly after takeoff and impacted building after two tailstrikes
pattern_is_full is offline  
Old 13th Jan 2020, 12:07
  #145 (permalink)  
 
Join Date: Jan 2010
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Originally Posted by pattern_is_full View Post
After first lift-off attempt and rocking wings and settling back on runway, FO/PM calls reject and retards thottles, PIC/PF says "No need. Let's go, let's go." and firewalls throttles.
I find it rather difficult to have any regret for the death of the PIC/PF. It's just a shame that others had to suffer death and injury as a result of his decisions.
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Old 13th Jan 2020, 13:59
  #146 (permalink)  
 
Join Date: Apr 2014
Location: Korea
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Originally Posted by SamYeager View Post
I find it rather difficult to have any regret for the death of the PIC/PF.
If he had not perished, it might have been useful to ask him how it came that his mental picture of the situation came to be so much different from the reality.
Euclideanplane is online now  
Old 29th Jan 2020, 04:53
  #147 (permalink)  
 
Join Date: May 2003
Location: Israel, Kazakhstan, Spain
Posts: 292
Unfortunately FO passed away yesterday

"On Jan 28th 2020 Almaty's Health Department announced, that the first officer of the flight has died. The first officer had regained consciousness on Jan 5th 2020, left intensive care and was treated in a special department. On Jan 21st 2020 he had been discharged into home care. An emergency call was received from his home on Jan 28th 2020 reporting rapid deterioration of his condition, emergency services rapidly arrived on scene, found the first officer was suffering from cardiac arrest and attempted resuscitation, however, to no avail."

Accident: Bek F100 at Almaty on Dec 27th 2019, lost height shortly after takeoff and impacted building after two tailstrikes

Aksai Oiler is offline  
Old 29th Jan 2020, 09:55
  #148 (permalink)  
 
Join Date: Jul 2004
Location: Netherlands
Posts: 674
Is there an autobrake RTO setting on the fokker? Which would apply max braking when the thrust levers are retarded?
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Old 30th Jan 2020, 10:41
  #149 (permalink)  
 
Join Date: Aug 2002
Location: Thin Air
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Originally Posted by fox niner View Post
Is there an autobrake RTO setting on the fokker? Which would apply max braking when the thrust levers are retarded?
Yes, that is an option. So some F100/70's have it and some not.
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