B-738 Crash in Russia Rostov-on-Don

[lovelove]

Originally Posted by KKN_

Whatever stab problems one can think of (technical, inputs), this alone seems not to explain the notable bank angle inferred from CCTV recordings.

Originally Posted by DaveReidUK

The FR24 data does not support the hypothesis that the GA involved any significant bank angle.

Originally Posted by enola-gay

But the video footage does. The video at post #298 shows 2 landing lights in view of the ground camera situated at right angle to the descent path. It looks like a high bank angle as the a/c impacted

This question is equally puzzling to me:

How could the plane have gone from 0° bank angle to 45°-90° bank angle
WITHOUT lateral course deviation ?


FZ981 was well lined up with the runway on second/final approach, hence ~0° bank angle:




Even AFTER "start of dive" FZ981 continues on its straight ground track without almost
any lateral deviation. Here better seen from above:




But during the fatal dive, FZ981 had a bank angle somewhere between 45°-90° (probably
closer to 90°), as can be seen in the various videos posted here:

Originally Posted by Wrist Watch

http://youtu.be/9aBq8saXy2M

Pause this video in a precise moment between 0:06 and 0:07 so that aircraft in fall (or rather its lights) can be seen shortly becore impact. Observe the position of landing lights. Conclude the bank angle being close to 90 degrees left, with a steeply negative pitch attitude.

Nevertheless during [final approach + GA + fatal dive] FZ981 doesn't sensibly deviate
from its straight ground track, which can not only be seen in image #2 above but is also
corroborated by the plane crashing onto the runway (hence no lateral deviation):




avherald says: "Radar data suggest the aircraft on final approach was to the left of the localizer and just to the
left of the left runway edge and corrected to the right while over the runway bringing the aircraft just within the
runway edges moments before ground contact."




So how does the plane go from 0° to 45°-90° bank angle without lateral deviation ?
Forward motion provided, a passenger jet makes a turn when it banks, isn't it ?

• the plane banked (see image #3 above)
• the plane was in forward motion: 200 kts when starting to bank and it still kept some forward motion during the final dive (see images below)
• yet the plane didn't make a turn (image #2) but crashed onto the runway (image #5)

how come ?


images showing forward motion (and banking) throughout the final dive:








(Google Earth Images produced by IG member Victor Ianello)