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Rare but happens - PT6 engine failure - PC12 N477SS

this is my home field. My mechanic was there before and after the accident. The airplane came over the field on the north threshold with adequate height for a landing but decided (felt too high I assume) to make a 360 and headed north to lose height, During the turn towards the airport entered a spin luckily ended up flat. I went there the day after and saw the sorry sight. I guess he never did the alpha one and alpha 2 maneuver. At no moment did he put the gear or flaps down. Engine was silent during the entire episode. What a pity. Wonder what made the engine fail. I am sure PW engineers will be there to find out. Should have been a survivable accident. Easy to criticize. Lucky only got a broken leg. The value of alpha one and alpha 2 maneuvers is incalculable. We do that every year on our recurrent training for insurance purposes on my turbine airplane which has similar glide ratio as the PC-12.

KHQZ, United States

That explains why it has no wings. What’s Alpha one and two?

Last Edited by loco at 26 Apr 19:25
LPFR, Poland

Perhaps high and low key points in a constant aspect technique forced landing ?

Oxford (EGTK), United Kingdom

Thank you for the Grade A input, Magyarflyer.

Administrator
Shoreham EGKA, United Kingdom

It doesn’t look like a a spin in this video.


Weird ! Erratic pitch movements. Panic ?

EBST, Belgium

No the stick pusher kicked in, and he may have fought it!

Oxford (EGTK), United Kingdom

Yep was probably trying to stretch the glide and AOA got too high.

EGTK Oxford

Here’s another one from 2002
https://aviation-safety.net/wikibase/17023

Sweden
19 Posts
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