Day: March 12, 2019

It seems incomprehensible that American Airlines and Southwest Airlines can refuse to ground their B-737 Max 8’s while the rest of the world grounds theirs in the face of two accidents that have claimed the lives of nearly 350 people.

There would not be enough money in the world to pay the punitive damages claims that either airline would have to pay in the event one of their Max 8’s dived into the ground because the MCAS failed again.

Today Boeing announced a software fix that reduced the control authority of the MCAS so the elevators would still be able to allow the crew to pull out of a dive induced by runaway stabilizer trim and added a comparator so if either Angle of Attack sensor disagreed, the system wouldn’t work. This is a good first step but the airplane should never have been certified by the FAA without those features in place. It has a single point failure, one sensor operated the system at a time, and this emergency system alone created a worse emergency.

Do American and Southwest’s Max 8’s already have the software or some version of it that the International carriers do not have? If so the culpability of Boeing would be worse, if that’s possible, but the FAA would also have to be complicit which would explain why it rushed to defend Boeing and the decision of American and Southwest not to ground their fleets. If American and Southwest have a revised MCAS and they remain silent about it, they are morally corrupt for remaining silent.

There is no evidence that the U.S. carriers’ aircraft are any different than those sold overseas but something is driving this arrogance in the face of certain disaster.

Arthur Alan Wolk

3/12/19

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Boeing has announced and the FAA has agreed to software changes to the MCAS system, the anti-stall system suspected in causing 300 deaths in the last 4 months on the Boeing 737 Max 8.

The Boeing announcement says the enhancements include updates to “the MCAS flight control law, pilot displays, operation manuals and crew training. The enhanced flight control law incorporates angle of attack (AOA) inputs, limits stabilizer trim commands in response to an erroneous angle of attack reading and provides a limit to the stabilizer command in order to retain elevator authority.”

Yet just yesterday the FAA issued a certification of continued airworthiness for the 737 Max 8 claiming to the world that in spite of the two recent accidents, the airplane is just fine. That’s funny, an Airworthiness Directive addresses safety of flight issues and one is already issued on an emergency basis and the software enhancements are included in the second to be issued in April. Other changes are likely to be mandated as well.

So the B-737 Max 8 is so safe that over 300 people are dead and it needs to be changed to keep flying yet the FAA hasn’t grounded it until the “enhancements” are introduced.

Other U.S. carriers who operate the Max refuse to take it out of service. What will the FAA say when another one goes down, this time in the U.S., “Our hearts and prayers go out to the victims’ families.”?

This is politics as usual and the FAA is covering up its embarrassment for having certified an airplane with an emergency system that causes its own emergency. The 737 Max 8 will one day be fixed just like the 737 rudder was after six accidents years ago, but right now until it’s fixed it should remain on the ground.

The FAA is useless!

Arthur Alan Wolk

3/12/19

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