FlyerTalk Forums - Boeing 737 MAX 8 crashes and effects on AA 737 MAX 8s (NOT reaccommodation)

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Quote:

Originally Posted by Carolinian (Post 32914047)

Here is the latest 737 Max incident. An Air Canada bird was being returned from the desert when shortly after takeoff, they had a fuel imbalance in the left wing, leading to engine shutduwn and an abort back to Tucson.

https://www.zerohedge.com/markets/ai...ergency-flight

Fortunately no pax aboard.

Id think any aircraft sitting out on tarmac somewhere in mothballs, as carefully as they prepare them, have a higher risk of something like this going wrong as they’re on test flights or flying to return to duty.

Quote:

Originally Posted by dc10forlife (Post 32830118)

Thanks for that information. Please correct me if I am wrong, but with the two loss of 737 MAX 8 aircraft, those planes were equipped with only one angle of attack sensor (which failed). I believe the U.S. carriers, including American, chose to go with the redundancy of the two sensors. It sounds like the original MCAS programming may not have even handled the failure of one sensor (but not both) correctly, or did that redundancy make it less likely for an unwanted MCAS activation?

All MAX aircraft had and have two angle of attack vanes / sensors. AA was the only airline I the USA that opted for the angle of attack indicators included in the primary flight display, and a comparator circuit with disagree warnings for out of synch AOA signals (see illustration)

. The other two airlines, iirc, WN ordered one option, but Boeing failed to inform them the warning would not work if you didn’t buy the flight display indication, and UA didn’t order either option. The two airlines that suffered the MAX losses also opted to save money by not purchasing what Boeing at the time offered as mere options at extra cost.

https://cimg0.ibsrv.net/gimg/www.fly...0aa75d6bd.jpeg

Of course both AOA indication and AOA disagree warning are now required for safer operation of all MAX aircraft, at no cost, along with updated MCAS, operating manuals, pilot training and some other details including a wiring issue.

Quote:

Originally Posted by JDiver (Post 32914586)

The link in the quoted post is to a blog best known for its sensationalist headlines.