That was also mentioned on several other forums. Unfortunately that item was ommitted in the court filing as they only state "pilots" as a collective term in flying the aircraft.the FO was the PF...
That was also mentioned on several other forums. Unfortunately that item was ommitted in the court filing as they only state "pilots" as a collective term in flying the aircraft.the FO was the PF...
CA?Yes, It is my understanding that during the accident sequence, the FO was the PF. Dual manipulation of the controls eventually ensued as predicted, the CA is even rumored to have sheared the column retaining pin he pulled back so hard against the FO inputs. Just absolute chaos over a perfectly flying airplane.
And the jumpseater just sat there and watched.?? (and I know there was not much time to do much of anything to counteract)
Captain.
Funny you mention that. The RUMINT on the CVR has it that the noise signature at the beginning of the upset was consistent with large and/or heavy objects violently crashing onto the ceiling and thumping back down.
We all like to believe we would fight to help regain control as a matter of self preservation, but theres just so much one could do if the anecdote that the FO was that paralyzed into an improper control input and response to stress, to the degree the other pilot broke the control column holds true.
Especially if you just had your head bounced off the ceiling and now you're unconscious.Eighteen seconds really isn't enough time to completely change those expectations and be the hero.
Should have been strapped in...?Ok, thanks, I was not aware of that. Yep, little could be done if the jumpseater was pinned to the ceiling.
I have no clue if this accident is what caused it, but at the airline we now do MAJOR stall training. Truly unprecedented. Like full stalls at 30,000 feet. Very radical stuff.I’ll say this gingerly since we don’t know what we don’t know on this one yet, but...
IF this turns out to be one massively inappropriate response by the FO...
There’s been a lot of rah-rah-ing of the article saying foreign carriers have crap training programs...
But somehow both Air France and now these guys...
Flew perfectly good airplanes into water.
There’s a HINT there that our training still has some significant Swiss cheese holes someone can slip through, if a 767 FO has indications of high power settings and pushes the nose DOWN.
Everyone said in @flyingcheesehead ‘s thread about “how do you learn the stuff you don’t experience” that there were too many checks and too many people involved in those checks for someone to make it to the cockpit of a 121 with these sorts of gaping knowledge holes.
I’m just gingerly testing that assertion with a very low voltage cattle prod here. If this dude did what the rumor mill is saying he did... a whole hell of a lot of people missed that he had a MASSIVE knowledge gap in basic airmanship. Pitch, power, performance.
And I’m kinda, not buying it.
....
Okay that said, there’s a lot of info that still needs to come out on this thing. Heck, for all we know the jumpseater hit the ceiling and landed on the FO, pinning him forward. (Just to make up an alternate story nicer to the FO, here. Maybe it doesn’t match info we have. I’m just being alternatively nice after being critical.) The FOs initial mistake could have had consequences we don’t know yet.
I wonder VERY hard if the FO saw... or believed he saw... something that indicated he was slow. Shoving the nose down after making it that far into a commercial aviation gig, just doesn’t make any damn sense to me, really.
AIr France, makes some sense, they had indications they didn’t REALLY understand.
So I have to wonder aloud, what in the world did this pilot see that would indicate a nose down attitude at high power made any sense whatsoever? So much so that he fought the Captain over it to the point of breaking the controls......?
The question itself tells me we really don’t have all of the info.
Okay. Now for the real controversial thought I had today... cockpit video would make all doubt disappear.
I know there’s a LOT of pushback against that concept... but with the right rules MAYBE it wouldn’t be abused by companies... encrypted and only accessible to accident investigators... whatever... it COULD be done... but nobody wants it... for a lot of legitimate reasons...
Just tossing thought hand grenades tonight.
Some of these came to mind while driving today. This accident has held my interest more than many since the beginning... no particular reason. The more than comes out about it, the more totally screwed up it seems.
And no love for cargo pilots, as mentioned before. There’d be all sorts of pressure to release more info if passengers had gone in the drink with these poor souls.
The shear pin thing is interesting to me also, from one tiny engineering point. If you’re going to design in a shear pin, wouldn’t you want the left side yoke to be the one that stayed connected and the right side to go limp? Or is there a pin on both sides? Probably is.
I haven’t seen an exploded diagram of the linkages. Was just another idle thought...
Something still doesn’t “ring” right with the rumored story yet. Something critical still feels like it’s missing. Even 18 seconds is long enough to yell “get off the controls NOW, MY AIRPLANE!” Maybe even smack the guy if you can reach him from the left seat...
Official sources dead quiet, rumor mill churning overtime, this one feels like damage control is involved to me. And usually when I get that sense, the reality is shocking and not what the rumor mill said exactly, but even weirder in the end.
If the rumor mill IS correct and this pilot made it all the way to that cockpit with a real sense that high power and nose down was some sort of good idea, I hope the report seriously digs into the training background. Something went severely wrong, training-wise and LOTS of people didn’t notice. That would be very ugly news.
I have no clue if this accident is what caused it, but at the airline we now do MAJOR stall training. Truly unprecedented. Like full stalls at 30,000 feet. Very radical stuff.
Nobody is immune from poor training and skills. We, and other western countries, have done better than most but we aren't perfect. A big part of our success has been analysing incidents that didn't result in accidents to identify threats and trends then adapting training, systems, and procedures to mitigate those risks. ASAP, FOQA, LOSA, and similar programs, collect the data that, in the past, was never brought to light.There’s been a lot of rah-rah-ing of the article saying foreign carriers have crap training programs...
But somehow both Air France and now these guys...
If that scenario proves to be correct, he was likely reacting to the sudden, and unexpected, pitch-up caused by the inadvertent activation of the GA mode and subsequent increase in engine power. If this is what happened, it wasn't a 'huge gap' in his knowledge, it was a lack of situational awareness. i.e. Reach over and pull back the power levers. You don't learn situational awareness from a book. You gain it with experience.So I have to wonder aloud, what in the world did this pilot see that would indicate a nose down attitude at high power made any sense whatsoever?
The NTSB will be able to figure out what happened without cockpit video.Okay. Now for the real controversial thought I had today... cockpit video would make all doubt disappear.
I haven't flown the B767 since 2013 so the details are no longer fresh. The reason the controls separate under high force is as a backup for a situation where one of the control columns jam. Some aircraft have handles which allow the pilots to separate the controls. Others, like Boeings, have a system where excessive force separates the columns to allow the non-jammed column to operate the controls.The shear pin thing is interesting to me also, from one tiny engineering point. If you’re going to design in a shear pin, wouldn’t you want the left side yoke to be the one that stayed connected and the right side to go limp? Or is there a pin on both sides? Probably is.
The preliminary information I've seen indicates that the Captain never verbalized a transfer of control. We'll know for sure when the report is released.Even 18 seconds is long enough to yell “get off the controls NOW, MY AIRPLANE!” Maybe even smack the guy if you can reach him from the left seat...
That is as expected, isn't it? The NTSB doesn't conduct its investigations in the public domain.Official sources dead quiet
Cool stuff. You fly an Airbus, right? What kind of events would it take to get it into a stall at 30,000 ft? Is this in response to the Air France crash? I imagine you'd have to be in direct law.. and have a series of other things go dramatically sideways to stall an airliner at cruise altitude.I have no clue if this accident is what caused it, but at the airline we now do MAJOR stall training. Truly unprecedented. Like full stalls at 30,000 feet. Very radical stuff.
I’m having trouble getting my head wrapped around the yoke shear pin thing. Are they literally designed that way, to shear at a certain amount of force? If so, is it because of the possibility of left and right seat fighting each other?
That is as expected, isn't it? The NTSB doesn't conduct its investigations in the public domain.
Perhaps was depending on the automation and not monitoring?
It is just the CVR report. The airplane apparently stalled for some reason unknown at this point. Perhaps was depending on the automation and not monitoring?
I must have grabbed the wrong link. Try this one:It is just the CVR report. The airplane apparently stalled for some reason unknown at this point. Perhaps was depending on the automation and not monitoring?
FYI: Technically the full factual report has not been released yet as shown by this search: https://www.ntsb.gov/_layouts/ntsb....?queryId=d771f7b3-2804-4efa-8ae4-74fca1201fabI must have grabbed the wrong link.
No, the airplane did not stall, but for some reason, it appears that the FO thought it was stalling and pushed the nose down. And then he pretty much froze while the Captain was trying to figure out what the heck was going on.It is just the CVR report. The airplane apparently stalled for some reason unknown at this point. Perhaps was depending on the automation and not monitoring?
Did you read the FOs training history?You mean like Colgan 3407? Nah that would never happen.... again.
.
We don’t have it on the 757, so I’m not really familiar with it, but I wonder if CWS (Control Wheel Steering) was engaged.Interesting (and unfortnately sad) reading the report. It wasn't exactly going smoothly
1836Z - FO reports a PFD failure and transfers controls to the captain
1836:24 - ATC requests a expedited descent to 3000. No reply from the plane so ATC asked them to hustle.
???????? - FO reports potential failure of ADI/HSI, some switch is changed and Captain is talking about getting displays back
1837:18 Captain transfers controls back to FO
??????? Flaps 1, FDR records lateral acceleration fluctations, go around mode engaved and thrust of engines.
1838:37 Speedbrakes retracted to near zero, ATC talks and Captain responds
about a second after that exchange FO makes expression of surprise followed by comment regarding airspeed. Captain then responds to previous ATC request with "OK" - the last recorded ATC communications. The plane was descending through 6000ft
about 3 seconds later FO makes comment regarding stalling
1839:39 ATC loses radar contact at 5800ft
about 16 seconds from the previous Captain's "OK" to ATC the FDR stoppped at airspeed of 433.5kts and the autopilot engaged.
....so display / instrument failures. ATC is trying to get them down quickly. Not sure what that "lateral acceleration" event means? Some kind of attempts to get the display working. And makes me wonder why the autopilot was engaged at the time of the crash even though all the earlier speculation of the pilots fighting to fly the plane.
It is just the CVR report. The airplane apparently stalled for some reason unknown at this point. Perhaps was depending on the automation and not monitoring?
Are you sure you read through the same docket? Its all there man. I was gonna post it, but go read up on APC for the cliffnotes. @Fearless Tower is correct. It is another colgan 3407, and the FO screwed the pooch. That's why this has been fairly quiet since the prelim. The cat has been out for a while now. Occams razor. If people want to wait for the appeal to authority formalities of the ntsb spoon feeding it to ya, that's fine.First, to clarify some links...
Full Docket
Cockpit Voice Recorder Transcript
Cockpit Voice Recorder Sound Spectrum Study (mentioned a few times in the transcript, and very interesting IMO)
Flight Data Recorder Specialist's Report
FO Training History
I'm not sure what "Normal" is for training, but both the captain and FO had required some extra training at times. Captain was relatively new, only about 4 months into his experience as a captain. The previous captain to fly with the FO was interviewed and actually rated the FO as being above average. So, not sure I buy this whole "FO screwed the pooch" thing.
Are you sure you read through the same docket?
Its all there man.
Atlas is gonna get sued, and they're already on record stating the FO lied on his application by withholding his employment history prior to Mesa (tsa, commutair, and air wisky). two of those didn't make it to a pria as a result, and of course atlas argues they would have not made the job offer upon discovery of that additional training failure history.
They hit the GA button, he panicked and lost control.
When he was screaming about stalling he was at 275 kcas.
The CA broke through the column pin (25 lbs) trying to pull back against a panicking lock-elbow FO who thought he was stalled. By the time the split elevator input starts matching it apparently requires in excess of 40 lbs, which is where the CA column achieves mechanical advantage. Best the CA could do is impact at 16NL and in excess of 400+ knots calibrated. They were probably aeroelastic at that point; well into hydraulic blanketing or control reversal. He killed them all in a perfectly working airplane.
But the Captain wasn’t really being a Captain either... nothing recorded of even a hint of “MY CONTROLS!”
Doesn’t fit. It takes two conscious pilots going in opposite directions to shear the interconnect. In my opinion. As much as I hate to say it i think this is pretty clear.Could it have been both? They hit a microburst and the FO couldn’t handle it and the captain failed to correct him/it?
I mean he tried but never verbally said “my airplane”. Earlier he says he’s bleeding. Did he get knocked on the head from turbulence? Was he a bit disoriented?
Copilot was PF. He called for flaps, captain reached around the throttle quadrant to extend the flaps and accidentally hot the TOGA button. They were in IMC. Copilot took the sudden acceleration as a pitch up and rammed the yoke forward to the stops. Captain hauled back on his side (no positive exchange of controls) and broke the shear pin. Now they have a split elevator. Never retarded the throttle. By the time they exit IMC at 2,000 feet its too late.
Co-pilot had "separated" from 3 previous carriers, one being Mesa. Failed a half-dozen rides. Lied to Atlas on his application. Read the record of conversations. He was fine as long as everything was as expected, but multiple times in the sim, if something unexpected happened he'd just start pressing buttons and doing random sheet.
Last word on the CVR, before the copilot's unsuccessful prayer anyway, was the jumpseater screaming "pull up".
https://www.pprune.org/rumours-news...1-ntsb-public-docket-opened.html#post10643902
Yes, that is they. And personally, having many thousands of hours in two different Boeing products, I can’t really figure out how one can accidentally hit the TOGA buttons.