Let me throw in my two cents. When we were doing stall training in the Dornier 328 at Skyway our main goal in stall training was to NOT LOSE ALTITUDE.
We would set it up flying level at 150 knots or so then power back and configure (if necessary). As the airplane slowed there was the usual tendency to pitch down which we would counter with trim. Per the procedure we weren't allowed to trim below 120 so we had only our muscles to maintain altitude.
By the time the airplane stalled at around 100 knots you were pulling back just about as hard as you could with one hand - it was a real handful. At the stall the procedure had you go to full power AND NOT LOSE ALTITUDE, which necessitated just about full back pressure on the yoke.
If you have a stall recovery procedure where, every time the stick shaker went off you were yanking back on the yoke as hard as you could AND CONTINUED TO DO SO AS PART OF THE RECOVERY PROCEDURE is there a chance that when the stick shaker went off for real that you would revert to the "muscle memory actions" that were drilled into you during training?
This is just a theory on my part that I'm throwing out there to get opinions on. I have no knowledge on what Colgan's stall recovery procedure was. I'm making the assumption :crazy: that it was similar to ours at Skyway.
I have a good synopsis on these accidents. Its in print form, so I'd have to mail it to you. In any initial training in the AF, one of the things you're given is a compilation of (releasable, no priviliged information) accidents particular to that airframe throughout the years. It's really good reading and learning...and I still have mine for the T-37/38, as well as the A-10. Very interesting stuff, and good points taken out....from pilot error, to mechanical, to WX.....no one is really immune, unfortunately.
PM me and I'll send it to you.
EDIT: wrote some more to my previous post above.
We are taught to respect the shaker during stall recovery, if you get a pusher (which you DEFINITELY would using the technique you've described) it's a bust.
250hr FO's are OK, and you're good to go with 15:59 duty time and 8hrs rest, but god help you if you forgot to remove that 10-8 from the last revision.
Just a quick thought:
The issue was a high altitude stall, not a low altitude stall.
If you're down close to the dirt, you don't want to lose much if any altitude.
If you stall a jet up high, and are lucky enough not to have blanked out the tail, you will lose a lot of altitude.
So teach pilots how to recover in a stall at FL400 versus the close to the dirt scenario we all practice. I haven't done a high altitude stall, but I'd bet dollars to donuts a thousand feet or more would be required to recover satisfactorily.
I think, if anything, there should be an additional stall scenario in training to add the high altitude stall, not cancel out low altitude stalls.
I think, if anything, there should be an additional stall scenario in training to add the high altitude stall, not cancel out low altitude stalls.
Conversely if you screw up that low altitude stall recovery and go from an imminent stall to a full stall then you're going to lose a lot more altitude than if you had lowered the nose and decreased AOA a bit eh? Especially in a 74,000 lbs. transport category aircraft.
Or said another way, these guys might have been able to lower the nose, take a 500' loss in altitude an survived over doing the "proper procedure" and hitting the ground.
But I guess that opens up the debate of whether basic airmanship (seeing that you're up the creek without a paddle and that you need to move yourself slightly outside the SOP to survive) and following procedures to the letter, all the time.
Question for you -- how much altitude does a transport category aircraft lose during a stall? I'm curious, because the Colgan crash involved a plane that was at a low altitude.
You can recover from a stall in a 172 in 100 feet. I'm sure it takes a lot more altitude to do it in a transport category aircraft.
FAA probes Colgan on pilot overscheduling
By Jerry Zremski
NEWS WASHINGTON BUREAU CHIEF
Copyright 2009 The Buffalo News
WASHINGTON—The Federal Aviation Administration is investigating whether Colgan Air — which operated the Continental Connection commuter plane that crashed in Clarence Center on Feb. 12 — violated federal rules by overscheduling its pilots.
Meanwhile, sources said the National Transportation Safety Board’s investigation of the crash is increasingly focusing on Colgan’s pilot-training program, particularly pertaining to how the plane’s stall-protection system operates in icing conditions.
...
The board previously listed “fatigue management” and “stall recovery training” as factors that it was studying as it searched for a probable cause for the crash of Continental Connection Flight 3407, which claimed 50 lives, including one on the ground.
At this point, however, it is unclear whether the FAA investigation is connected in any way to the Clarence Center crash.
“A small number” of Colgan pilots and the airline itself have received letters of investigation from the FAA, the Colgan pilots union said in an April 20 memo to its members that never mentions the Buffalo-area crash.
Agency officials have audited Colgan pilot schedules dating from last November, and “through this process they have identified a small group of pilots who, they believe, have violated flight-time or duty-time regulations,” said the memo, which was obtained by The Buffalo News.
...
Meanwhile, the National Transportation Safety Board investigation of the Clarence Center crash is raising questions about an unusual feature of the Bombardier Dash 8 Q400 aircraft’s stall-protection system — and whether the crew of the doomed plane was properly trained to know how that system worked in icing conditions.
At issue is the plane’s “REF speeds” switch, a toggle in the cockpit that aims to account for the fact that planes stall at a higher rate of speed when they have ice on their wings.
When the REF, or reference speed, switch is set on “INCR,” the stall-warning system will activate at a speed that’s about 20 knots higher than it would when it is in the off position.
Sources said the switch was in the “INCR” or increase position on Flight 3407, as it should have been—although the crew might not have known that this would activate the stall-warning system much more quickly than normal.
...
Question for you -- how much altitude does a transport category aircraft lose during a stall? I'm curious, because the Colgan crash involved a plane that was at a low altitude.
You can recover from a stall in a 172 in 100 feet. I'm sure it takes a lot more altitude to do it in a transport category aircraft.
Okay, this is where I get all "gruff".
Here's the deal. I'm all about making everyone better, and training to improve and all that.
At the end of the day, if you are unable to discern a high altitude stall from a low altitude stall, you shouldn't be flying me around.
Spare me from the "workload" argument. If any stall warning goes off, and you are unable to drop what you're doing and fly the airplane, you shouldn't be flying me around.
Save the "in an Emergency" argument. In an emergency, in a two pilot plane, one should fly (sans the momentary confirmation to make sure your flying partner doesn't shut down a good motor) and only fly.
I've trained approaches to stalls (because, really, isn't that what the discussion seems to be about with all this talk of the shaker - and the plane isn't stalled at that point) in aircraft from weights of a couple thousand pounds to over 800,000 lbs. If you properly execute an approach to a stall and recover at the first indication, the transport aircraft all preform the same.
NOTAM: if you believe in "word of mouth" or rumormongering then and only then the following can be taken as truth.
FAA has had it in for Colgan for years. It started many moons ago, before my time, and has continued after I left.
Whatever the case, if rules are being changed I'd be printing those out and keep them in my flight case. If you need to delay a flight because ur not sure, then that is the way it is. This is normally where I'd say "fraternally yours, Fly safe Fly the contract". Right now it sounds like the FAA is dictating everything so nod your head and say "yes sir, yes sir, three bags full!".
Good luck guys.
Question for you -- how much altitude does a transport category aircraft lose during a stall? I'm curious, because the Colgan crash involved a plane that was at a low altitude.
You can recover from a stall in a 172 in 100 feet. I'm sure it takes a lot more altitude to do it in a transport category aircraft.
Per the "approach to stall," as Polar mentioned, if you fly by the profile and recover at the first indication (shaker,) you can get by in the CRJ with not losing ANY altitude. At least that's the sim. Never tried it in the real plane. A full stall with the shaker and the pusher, you're gonna lose 100-200 ft. Depends on how deep you get the pusher. That's all low altitude stuff. Pinnacle teaches nada on high altitude recovery or aerodynamics, which is probably how 3701 got in core lock. They recovered exactly how they were taught. Too bad you don't have the excess thrust at FL410 you do at 10,000 ft, and you're wasting your time. High altitude recovery is pretty much the same as the 172. Put the nose over and get airspeed back. Your gonna lose a lot more altitude compared to the low altitude stall.
I don't think it was quite how they were taught. Unless you weren't taught to follow the QRH and desend at the appropriate speed for relight, or don't admit to ATC double engine failure until almost 10000 ft.