Read this article
http://online.wsj.com/article/SB123492905826906821.html
This is an excerpt of the first two paragraphs. Reportedly, the source is 'the investigators' (NTSB)
"Investigators examining last week's Continental Connection plane crash have gathered evidence that pilot commands -- not a buildup of ice on the wings and tail -- likely initiated the fatal dive of the twin-engine Bombardier Q400 into a neighborhood six miles short of the Buffalo, N.Y., airport, according to people familiar with the situation.
The commuter plane slowed to an unsafe speed as it approached the airport, causing an automatic stall warning, these people said. The pilot pulled back sharply on the plane's controls and added power instead of following the proper procedure of pushing forward to lower the plane's nose to regain speed, they said. He held the controls there, locking the airplane into a deadly stall, they added."
Now look closely at the second paragraph.
My opinion: A) The first sentence (2nd paragraph) is plausible. B)
I do not believe the second sentence. I think the NTSB's assumption is wrong.
This is telling us that when the shaker activated and the autopilot disconnected
- the pilot pulled back hard on the yoke, added power and then held the back pressure throughout.
To put it simply,
I think that's unadulterated BS!
I believe the NTSB (at present) is misinterpreting the pitch -up data (which aggravated the stall) as being caused by or resulting from incorrect pilot input.
If true this is damning.
It is also the complete opposite of training and I just don't believe it.
In critical situations pilots (initially) automatically react in accordance with their training. When the shaker goes off - you push not pull.
I think that whatever 'investigator' said this is overlooking the nose-up trim induced by the autopilot prior to the disconnect.
It may turn out that mistakes were made by the crew prior to the upset - but I just don't buy that one.
For now I'll stick to my theory of elevator trim as the cause of the pitch up and the progression from shaker to pusher - the initial stall of the wing.
After the pusher took effect and pitched the nose down - then yes - the pilot applied back pressure.
But not before.
These folks were flying on instruments.
You just can't convince me that any pilot who looks at the ADI and sees a servere pitch-up is going to try to correct it by pulling on the yoke - no matter what noise the shaker might be making.
If this really came from an investigator - then they're doing a lot more "speculating" than anyone in this thread.