Modern jets are pretty reliable. This is one of the few scenarios when you get all the automation working against you at the same time. A sensor in the system is faulty and providing all the rest of the flight management systems with erroneous data. Thankfully the end result of this was a safe landing. Unfortunately we still see endings that are not as pleasant and they serve as a reminder that the above situation can and will happen again.
That would leave the stall warning and the stick shaker to deal with. That would buy some peace and quiet to do the checklist. Hopefully after completing the checklist you can reengage the flight director, auto throttle and autopilot one by one and we are back in business.
If I am not wrong, the several episodes of warnings from the autopilot/autothrust systems were due to either the pilots trying to re-engage the autopilot or the system automatically trying to re-engage the autothrottle when a flight mode was selected.
A decision to disconnect the autopilot + autothrottle + flight director and fly a target pitch with a reasonable power setting would remove some of the distractions.
The environment can be sensory overload for the pilots when this situation happens. Bells and whistles and shocking vibrations on the control column......all these warnings built to save you from a bad situation are now acting in error and confusing you.
In fact, the autopilot and autothrust are also confused. due to the single failure of the ADIRU
This is probably one of the first lessons that a new pilot on modern commercial jet gets to experience in the simulator. Most simulator instructors would want to impress upon you from day one (either from kind words of wisdom or putting you unknowingly through the above experience in a simulator) that if the aircraft gets confused, you must and can manually fly the aircraft
shit if the control starts shacking that means the plane is gonna stall? I saw on Air Crash Investigation that a Turkish Airline plane had something smiliar. Stalled and crash in the sea. that happened around 1996
i wonder if you aardvark2zz are a B777 pilot with hands on knowledge of the aircraft system. I also wonder if this animation is the true picture of the actual instrument indication during that actual incident.
@aardvark2zz I m not being negative or frustrated. My concern is, there could be other facts which is not known yet and may not quite correctly put in this video. Nevertheless, I must congratulate you for the nice audio you added though it may not be the exact sound. Please if you dont mind, share with us your qualifications. Thank you.
Ok. The video speaks for itself and NOTHING more; of course there could be additional facts and I especially think that the pilots did the best given the crazy situation. Thanks. I mind due to the freaks on the web except to say that I have a long technical background; look at my video and many comments on supersonic shockwaves. You're welcomed.
Are you a pilot of that flight ? If so, COOL !! I have only positive things to say about you.
@Lynkk The AP turned off early, but the AT kept turning on and off since the auto-throttle MASTER switch was accidentally left on. A somewhat understandable thing considering the bells and whistles.
I don't think anyone likes the stick shaker.
psyjpg 1 month ago
was this caused by poor maintenance on the Air data or Pitot static system?
thomsonfly645k 5 months ago
Modern jets are pretty reliable. This is one of the few scenarios when you get all the automation working against you at the same time. A sensor in the system is faulty and providing all the rest of the flight management systems with erroneous data. Thankfully the end result of this was a safe landing. Unfortunately we still see endings that are not as pleasant and they serve as a reminder that the above situation can and will happen again.
jeremyleewf 8 months ago
That would leave the stall warning and the stick shaker to deal with. That would buy some peace and quiet to do the checklist. Hopefully after completing the checklist you can reengage the flight director, auto throttle and autopilot one by one and we are back in business.
jeremyleewf 8 months ago
If I am not wrong, the several episodes of warnings from the autopilot/autothrust systems were due to either the pilots trying to re-engage the autopilot or the system automatically trying to re-engage the autothrottle when a flight mode was selected.
A decision to disconnect the autopilot + autothrottle + flight director and fly a target pitch with a reasonable power setting would remove some of the distractions.
jeremyleewf 8 months ago
The environment can be sensory overload for the pilots when this situation happens. Bells and whistles and shocking vibrations on the control column......all these warnings built to save you from a bad situation are now acting in error and confusing you.
In fact, the autopilot and autothrust are also confused. due to the single failure of the ADIRU
jeremyleewf 8 months ago
This is probably one of the first lessons that a new pilot on modern commercial jet gets to experience in the simulator. Most simulator instructors would want to impress upon you from day one (either from kind words of wisdom or putting you unknowingly through the above experience in a simulator) that if the aircraft gets confused, you must and can manually fly the aircraft
jeremyleewf 8 months ago
shit if the control starts shacking that means the plane is gonna stall? I saw on Air Crash Investigation that a Turkish Airline plane had something smiliar. Stalled and crash in the sea. that happened around 1996
heywatchme101 1 year ago
ive been on 9M-MRG many times
Rwy02 1 year ago
So in this instance.. you should ignore the PFD's and fly using the standby analog instruments?
jmr604 2 years ago
Nope. The main displays seem fine. The problem seems to be with the FD computers (AP and AT). But that's easy to say in hindsight. :-p
aardvark2zz 1 year ago
i wonder if you aardvark2zz are a B777 pilot with hands on knowledge of the aircraft system. I also wonder if this animation is the true picture of the actual instrument indication during that actual incident.
tiongman777 2 years ago
@tiongman777 You seem to be negative/frustrated. How about you make your own constructive comments.
If you ask nicely I might tell you my qualifications :-)
The original animation had no audio and is from the Australian Safety Board.
aardvark2zz 2 years ago
@aardvark2zz I m not being negative or frustrated. My concern is, there could be other facts which is not known yet and may not quite correctly put in this video. Nevertheless, I must congratulate you for the nice audio you added though it may not be the exact sound. Please if you dont mind, share with us your qualifications. Thank you.
tiongman777 2 years ago
Answers to your sentences:
Ok. The video speaks for itself and NOTHING more; of course there could be additional facts and I especially think that the pilots did the best given the crazy situation. Thanks. I mind due to the freaks on the web except to say that I have a long technical background; look at my video and many comments on supersonic shockwaves. You're welcomed.
Are you a pilot of that flight ? If so, COOL !! I have only positive things to say about you.
aardvark2zz 2 years ago
I don't know why they waited so long to disconnect the AP
Lynkk 2 years ago
@Lynkk The AP turned off early, but the AT kept turning on and off since the auto-throttle MASTER switch was accidentally left on. A somewhat understandable thing considering the bells and whistles.
aardvark2zz 1 year ago
@Lynkk and to increase thrust
janadal86 7 months ago
100% throttle and nose down doesnt make much sense...usually its just nose down.. cuz 100% throttle up would make the plane want to ascend
737747757767777787 2 years ago
wtf arent they supposed to apply 100% thottle and nose down if the airplane goes into a stall?
Macky91SWE 2 years ago
yes. I don't know why this was delayed. Also, the autothottle automatically kept turning on and idling the engine !!
aardvark2zz 2 years ago
scary...
SkySingh 2 years ago 2