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Chat Area => General Discussion Area => Topic started by: PhilRich on 04 February 2015, 11:41:45

Title: Taiwanese Planecrash
Post by: PhilRich on 04 February 2015, 11:41:45
19 reported dead as of now from a total of 58 Souls aboard. Watching the dashcam footage of the event, it is a miracle anyone got away with their lives, and if the Pilot/s had any degree of control over that aircraft they did a Heroic job of missing that builtup area and the bridge(almost)! :(
Title: Re: Taiwanese Planecrash
Post by: henryd on 04 February 2015, 12:21:30
19 reported dead as of now from a total of 58 Souls aboard. Watching the dashcam footage of the event, it is a miracle anyone got away with their lives, and if the Pilot/s had any degree of control over that aircraft they did a Heroic job of missing that builtup area and the bridge(almost)! :(

That taxi driver was lucky to walk away from that as were the survivors because that looked terrible on camera :'(
Title: Re: Taiwanese Planecrash
Post by: Kevin Wood on 04 February 2015, 12:23:17
 :o

As said, a miracle. Plane looked stalled to me, so guessing the pilots were passengers by then, and it was pure luck that they ended up where they did.
Title: Re: Taiwanese Planecrash
Post by: Kevin Wood on 04 February 2015, 12:30:59
Looking at this video it seems the pilots were probably trying to "stretch" the glide to get clear of the built up area into the river, but stalled and dropped a wing. Who knows how it got into that position? Double engine failure, perhaps? :(

https://www.youtube.com/watch?v=eJNAx4BsUtE (https://www.youtube.com/watch?v=eJNAx4BsUtE)
Title: Re: Taiwanese Planecrash
Post by: Gaffers on 04 February 2015, 12:33:00
No question about it being in a stall, but obviously still had some hydraulic pressure in the systems left in order to turn the aircraft over on its side like that (likely in order to keep the aircraft in line with the river or to avoid something there that was previously unseen)

looks like they did all they could to get over the bridge on little or no engine power rather than plough in to the buildings where there was no chance of survival and every chance of hurting people on the ground too.

At first sight, a remarkable bit of airmanship :o
Title: Re: Taiwanese Planecrash
Post by: 05omegav6 on 04 February 2015, 13:23:51
Roll to the left might have been an instinctive flinch away from the power line :-\

Crash is/was about 8km east of Taipei Songshan airport.

That anyone survived beggars belief... :o
Title: Re: Taiwanese Planecrash
Post by: Kevin Wood on 04 February 2015, 13:55:45
That roll was too fast, and the aircraft flying too slow, for it to have been the result of a control input. More likely than not the aircraft stalled and dropped a wing, perhaps aided by asymmetric power being applied (engine failure?).
Title: Re: Taiwanese Planecrash
Post by: aaronjb on 04 February 2015, 14:12:30
Roll to the left might have been an instinctive flinch away from the power line :-\

Crash is/was about 8km east of Taipei Songshan airport.


I guess that puts it out about Donghu? It's fortunate that population density has dropped off a lot by there as the airport itself is right next to extremely densely populated areas (having spent a few weeks out there not far from that airport) so there is a lot less to hit (relatively speaking).. still remarkable flying (or luck) to get it in the river and have any survivors at all.
Title: Re: Taiwanese Planecrash
Post by: 05omegav6 on 04 February 2015, 14:36:54
That roll was too fast, and the aircraft flying too slow, for it to have been the result of a control input. More likely than not the aircraft stalled and dropped a wing, perhaps aided by asymmetric power being applied (engine failure?).
Starboard prop still spinning by the look, but resolution on the slowed video isn't great :-\

Roll to the left might have been an instinctive flinch away from the power line :-\

Crash is/was about 8km east of Taipei Songshan airport.


I guess that puts it out about Donghu? It's fortunate that population density has dropped off a lot by there as the airport itself is right next to extremely densely populated areas (having spent a few weeks out there not far from that airport) so there is a lot less to hit (relatively speaking).. still remarkable flying (or luck) to get it in the river and have any survivors at all.
Huangdon Boulevard, where it joins Jingmao 1st Road :y

Took a while to work out, mind...
Title: Re: Taiwanese Planecrash
Post by: Kevin Wood on 04 February 2015, 15:29:17
That roll was too fast, and the aircraft flying too slow, for it to have been the result of a control input. More likely than not the aircraft stalled and dropped a wing, perhaps aided by asymmetric power being applied (engine failure?).
Starboard prop still spinning by the look, but resolution on the slowed video isn't great :-\
The pitch on the props looks different to me, but, again, not easy to tell for sure on the video. Might indicate one has feathered? (or hit something, of course)
Title: Re: Taiwanese Planecrash
Post by: Varche on 04 February 2015, 15:33:14
Astounding footage and that anyone survived.

Title: Re: Taiwanese Planecrash
Post by: tigers_gonads on 05 February 2015, 10:17:01
That roll was too fast, and the aircraft flying too slow, for it to have been the result of a control input. More likely than not the aircraft stalled and dropped a wing, perhaps aided by asymmetric power being applied (engine failure?).
Starboard prop still spinning by the look, but resolution on the slowed video isn't great :-\
The pitch on the props looks different to me, but, again, not easy to tell for sure on the video. Might indicate one has feathered? (or hit something, of course)



Pilot reported engine flame out just after take off hence the feathered prop.
Excess roll probably due to the other engine screaming its 'dangle berries' off trying to keep the aircraft flying and not enough airflow over the rudder to compensate due to low airspeed.

If he actually aimed for the river then that's one hell of a bit of flying ............
Title: Re: Taiwanese Planecrash
Post by: Kevin Wood on 05 February 2015, 11:36:51
After a single engine failure the aircraft ought to have kept climbing, though. Given that it got to 1500 feet at one point, it should really have been out of trouble, even on a single engine. I'm wondering if it was a double failure, the failed engine couldn't be feathered and the resulting drag stopped it climbing, or simply, as you say, they flew it too slow and lost control.

Will have to wait for the report, I guess. :(
Title: Re: Taiwanese Planecrash
Post by: Kevin Wood on 06 February 2015, 15:17:19
Initial info from the flight recorder doesn't paint a happy picture. :(

http://www.pprune.org/rumours-news/555876-transasia-water-13.html (http://www.pprune.org/rumours-news/555876-transasia-water-13.html)
Title: Re: Taiwanese Planecrash
Post by: EMD on 06 February 2015, 16:30:57
Initial info from the flight recorder doesn't paint a happy picture. :(

http://www.pprune.org/rumours-news/555876-transasia-water-13.html (http://www.pprune.org/rumours-news/555876-transasia-water-13.html)

 :(

When the wrong engine is shut down can it be re started or not  :-\
Title: Re: Taiwanese Planecrash
Post by: the alarming man on 06 February 2015, 16:42:47
if enough time I guess it can...that's if it will restart......very sad :'(
Title: Re: Taiwanese Planecrash
Post by: Kevin Wood on 06 February 2015, 17:11:14
You can actually see both engines just start to come back to life right at the end of the trace. No.1 has oil pressure again and its' gas turbine section is accelerating. No. 2 is coming off idle and its' prop pitch is unfeathering. Too late. :'(

Awful to think it might have crashed with at least one, if not two, serviceable engines.
Title: Re: Taiwanese Planecrash
Post by: the alarming man on 06 February 2015, 17:26:56
You can actually see both engines just start to come back to life right at the end of the trace. No.1 has oil pressure again and its' gas turbine section is accelerating. No. 2 is coming off idle and its' prop pitch is unfeathering. Too late. :'(

Awful to think it might have crashed with at least one, if not two, serviceable engines.


so it does....very sad :'(
Title: Re: Taiwanese Planecrash
Post by: 05omegav6 on 06 February 2015, 19:34:36
Initial info from the flight recorder doesn't paint a happy picture. :(

http://www.pprune.org/rumours-news/555876-transasia-water-13.html (http://www.pprune.org/rumours-news/555876-transasia-water-13.html)

 :(

When the wrong engine is shut down can it be re started or not  :-\
With enough altitude and airspeed theoretically yes, but as anyone who remebers Kegworth will testify, shutting the wrong engine down at low altitude/speed only ends one way :'(
Title: Re: Taiwanese Planecrash
Post by: Shackeng on 06 February 2015, 22:29:04
Shades of British Midland at Kegworth. :(