A preliminary report reveals repeated brake pedal inputs by the captain during Vietnam Airlines' Munich 787 takeoff scare, raising more questions than answers.
This feels like the Florida equivalent of "elderly woman plows through Family Dollar glass window after mistakenly confusing gas for brake pedal".
Florida equivalent?? That exact scenario happens in Massachusetts at Dollar Tree’s, too
There are several photos showing the skid marks of the tires on the runway. So the activation of the brakes fits the evidence on the runway.
The question is intentional, "oops" like airplane or mechanical/electrical signal fault somewhere showing inputs and resulting brakes activating?
787 dreamliner is causing several problems
initially when this air craft was introduced it was giving teething
problem like lithium battery. secondly airindia flt AI171 met with
catastrophic accident due to hydraulic system failure which
caused loss of power to the engine
thirdly air vietnam VN incident at Munich
787 is a problematic aeroplane it must be discontinued by
boeing co.
AI171 accident cause is not determined. But hydraulic system failures do not shut down engines, nor do they explain why the FDR shows the fuel cutoff switches to both engines were moved from Run to Cutoff.
VN34's FDR shows the Captain's side rudder pedals and brakes were applied on several different occasions during the takeoff. The brake applications corresponded with speed reductions which most directly caused the overrun. Engine power and flaps appear to be set correctly. To be clear - it didn't show the brakes engaged on their own. It showed the Captain's side brakes (only - not the First Officer's) were pushed. That will cause ANY plane to overrun a takeoff, if you ride the brakes while trying to accelerate.
Also noteworthy in the Interim Report (not mentioned in the article) is that the CVR portion of the recordings - which captures the final two hours of flight deck - doesn't include the takeoff. Per the report: "The audio recording of the take-off was overwritten. The landing and switching off of the power occurred more than two hours after take- off." Not a conspiracy, but a circumstance of the certification requirements of the CVR and this flight (2 hr recording is the rule). The plane took off at about 11:53UTC. It landed back in Munich at about 13:56UTC. So all recordings of what the pilots said during the takeoff were lost.
But nice try attempting to tar and feather the 787.
The name of the pilot who intentionally crashed AI171 is "Sumeet Sabharwal" not "hydraulic system failure"
Lol if you are still trying to claim AI171 was anything but a mass murder-suicide.
'secondly airindia flt AI171 met with
catastrophic accident due to hydraulic system failure which
caused loss of power to the engine..'
The cause was a fuel cutoff causing bothcengines to shut down and the trigger was pulled in the cockpit my friend.
Anything is possible but I asked the AI:
"Where I could imagine cross-coupling is if contamination/corrosion physically interfered with the toe-brake pivot or its linkage relative to the rudder-pedal structure. Suppose the pilot pushes the whole right pedal forward for rudder. Normally the toe-brake portion maintains its neutral angle relative to the pedal carrier. But if something is binding the brake portion against a stationary structure, or if a bearing/linkage isn’t moving through its intended geometry, translation of the rudder pedal could inadvertently produce some toe-brake rotation. The brake-position sensor could then see that as a genuine brake command."
Having cleaned that area of my car it can pick up a decent amount of debris.
“Seconds later, the leading edge slats automatically extended as the aircraft’s stall protection system activated”
Aren’t the leading edge slats extended before takeoff anyway?
Aren’t the leading edge slats extended before takeoff anyway?
Yes, but a feature of the 787's anti-stall system is to push the slats into "Autogap" position, which extends them both forward-and-upward beyond their takeoff position, creating a gap of open-air between them and the wing's leading edge.
This allows high-pressure air from beneath the wing to channel through to the upper surface ("Boundary Layer Re-Energization") which helps keep the incoming airflow firmly attached to the top of the wing, even at extreme pitch angles, and prevent separation that leads to a stall.
This system is armed while the aircraft is below 225KIAS, and will activate automatically under certain angles of attack, or shifts in angle.
This could’ve been far worse, but it’s still concerning because there’ve now seemingly been two high-profile pilot-error 787 incidents, the other tragic. Hope we can learn from both so it never happens again. (Still waiting on AI171…)
Possibly, the captain was wearing some shoes with a bigger or sturdier sole than usual, so that he accidently hit the breaking part of the pedal. Normally, you do the breaking rather with the toes, so shoes need to have some flexibility.
The pilot flying (the captain) is 64 years old. That's a very unusual age for a commercial airline pilot still on duty. I am 67 and in very good physical shape but I know what deteriates over time. Whatever the exact wronggoings were this man should not fly again, let alone in the captain's seat.
I learned that the captain has 2 left feet. He wanted to press on gas with left foot but which one was that? The left foot or the other left foot? German press claims he had no feet and was pressing on wrong pedal with a stick. Maybe a crutch he normally uses to walk with.
I remember a bizarre Russian case where a hockey team crashed and died cause one of the pilots used the breaks while the aircraft was trying to rotate. They said it was lack of proper training when switching between Yak-40 and Yak-42, essentially claiming the guy just didn't know where to place his feet cause he was so undertrained cause the airline was so shady and so Russian.
The explanation never made much sense to me. Same totally bizarre case here - I'm not a pilot but i just can't imagine a scenario where where you do something so very obviously counterintuitive. When you're cruising on a highway you don't just try to switch gears into Park.