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FAA addresses dual-engine shutdown of A220 P&W engines

Following a dual-engine shutdown on an aircraft with Pratt & Whitney 1500G power plants – used exclusively for the Airbus A220 family – the United States’ Federal Aviation Administration (FAA) issued an Airworthiness Directive (AD) to prevent the shutdown from happening again. ( More...

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Doug Haviland 8
Thankfully it’s not Boeing this time. The haters would have been all over it.
Luckily in the Fokker F28 (circa 1986) we did not have any autothrottle system. So this problem would never have arisen.
jhakunti 1
I always wanted to fly the F28 Fellowship. CRJ700 will have to suffice.
mmc7090 8
In CT7 language it was a uncommanded
rollback. Since the ECU/FCU actually acted as programed. Like 737MAX programmers now crash airplanes too. Automation big lie that takes pilots out of the loop.
Firecul Firecul 4
147 engines? Who is running the mismatched set?
loubearr 1
Rex Bentley 3
Rube Goldberg strikes again. Keep It Simple Stupid.
godutch 8
Seems not so much an engine/engine manufacturer issue, but the AIRCRAFT avionics software issue (Airbus). The article starts out seeming to blame the engines!
Mike Bogue 7
Kinda sorta, but if you read the whole article, it clearly point to the engine control software as the culprit.
SkyAware123 1
The software that runs this might be part of the engine package.
Rex Bentley 1
Why not say what it is, it's a "problem", issues are in magazines.
Rex Bentley -2
Why not say what it is, it's a "problem", issues are in magazines.
Billy Koskie 2
Why did this take 1 1/2 years for the AD to get issued?
John Taylor 2
According to the FAA, following an investigation into the matter, it determined that “the sequence of the auto-throttle increasing throttle to maintain Mach number, immediately followed by pilot command to decrease throttle to idle, caused a transient disagreement between actual and commanded thrust.” As a result, the disagreement triggered a thrust control malfunction (TCM) detection logic, and the aircraft shut down both engines as soon as wheel sensors detected that the aircraft had physically landed on the runway.

And this over reliance on technology and not a pilot's skill will eventually lead to deaths in the future. In the not too distant future you will see a monkey in the cockpit trained to start the engines and shut them down after the plane does all of the taxiing and flying and landing on its own.
Bandrunner 2
And a dog to bite the monkey if it touches the controls in flight.
dcmeigs 2
Is this the least expensive AD note in the history of flight?
Firecul Firecul 1
I was also surprised by how cheap it seems to be to fix it.
wayne holder 2
So how long are these planes going to be grounded until there fixed
SkyAware123 1
wow. How about the software check if there is any airspeed too....
Software is never bug free but this is a design issue.

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