Beech Premier down on apprach RWY 15 WMSA
As many times as I've looked at the video, seems to be an aircraft descending nose down, followed by an excursion Starboard, then a roll, then more Starboard. Looked like a Stall from controlled flight. Trending to knife edge still in a turn, then, two seconds before impact, a rapid roll and near vertical impact. The speed looks to be 160-180 knots...(wag) the lack of apparent attempts to recover is disturbing...
A case can be made that there was an initial (partial) recovery from the Stall, but with a wing dropping off starboard, followed by a descending right turn... perhaps a secondary Stall.
A case can be made that there was an initial (partial) recovery from the Stall, but with a wing dropping off starboard, followed by a descending right turn... perhaps a secondary Stall.
Thread Starter
Thread Starter
As many times as I've looked at the video, seems to be an aircraft descending nose down, followed by an excursion Starboard, then a roll, then more Starboard. Looked like a Stall from controlled flight. Trending to knife edge still in a turn, then, two seconds before impact, a rapid roll and near vertical impact. The speed looks to be 160-180 knots...(wag) the lack of apparent attempts to recover is disturbing...
A case can be made that there was an initial (partial) recovery from the Stall, but with a wing dropping off starboard, followed by a descending right turn... perhaps a secondary Stall.
A case can be made that there was an initial (partial) recovery from the Stall, but with a wing dropping off starboard, followed by a descending right turn... perhaps a secondary Stall.
A case can be made that there was a
but with a wing dropping off starboard,no wing fell off. How language is used counts, 2/3rd of the visitors to these pages have English as a second language.near vertical impact.The last images of the aircraft are taken from a distance away, but clearly show the wing tip of the aircraft still obscuring the wing root, and with a 20 degree sweep wing leading edge, that indicates the nose down pitch is less than 20 degrees. The bank angle at that point is near vertical, but the exact body attitude can be determined, this is nowhere near "nearly vertical". Kinematically, it would be close to impossible to achieve a near vertical descent without achieving rates of roll and pitch that arise only with autorotation or coupling, and none of that occurred here, all of the rates are well within normal control derivatives.- As far as a stall goes, the known speed at the start is well above a stall that doesn't include aggravation. The flight path is consistent with having a problem that exceeds slightly the authority the pilot has in roll, and possibly yaw, but the latter is not indicated to be notable in the images.
- An asymmetry of some matter has occurred, but that may just be the secondary condition from a symmetric failure where there is a slight lateral change in the flow conditions of the wing. Having a severe birdstrike outboard on a wing could result in such an asymmetry, as could the lift dumper actuation while ailerons are not neutral. An engine failure on an approach, and at such a speed should not result in a flight path like this if any action is taken to mitigate, and that action is obvious and well within the authorities of the control system.
The potential for interference to occur is low, it would require a hostile act that impacts both pilots, and in country that has stringent weapons restrictions. Not impossible, but it is socially and politically out of the norm. Pahang is a pretty stable region of the country, and does better than many others, the local govt is not unpopular, and any such action would have to be from within the group, and there is no obvious rationale for that. But, not impossible, just improbable.
Last edited by fdr; 21st Aug 2023 at 23:14.
Jump to about 1:40 in the video.
