Additional software problem detected in Boeing 737 Max flight control system, officials say

Source: Washington Post

Additional software problem detected in Boeing 737 Max flight control system, officials say

By Aaron C. Davis, Luz Lazo and Paul Schemm April 4 at 10:05 AM

Federal aviation regulators have ordered Boeing to fix a second problem with the flight-control system of its grounded 737 Max, the company acknowledged Thursday, as new details emerged showing that the pilots of two planes weren’t able to counteract a malfunction of the system using the company’s recommended procedures.

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But later Thursday, Boeing confirmed to The Washington Post that it had found a second software problem that the Federal Aviation Administration has ordered fixed — separate from the anti-stall system that is under investigation in the two crashes and is involved in the worldwide grounding of the aircraft.

That additional problem pertains to software affecting flaps and other flight-control hardware and is therefore classified as critical to flight safety, said two officials with knowledge of the investigation.

The realization of a second software problem explains why the timeline that Boeing projected publicly last week for getting hundreds of the aircraft airborne again has slipped, the officials said.

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Read more: https://www.washingtonpost.com/world/africa/ethiopia-says-pilots-performed-boeings-recommendations-to-stop-doomed-aircraft-from-diving-urges-review-of-737-max-flight-control-system/2019/04/04/3a125942-4fec-11e9-bdb7-44f948cc0605_story.html