On Monday, an FAA spokesman said the agency instead expected to receive the final package of software "over the coming weeks."
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.īoeing initially said it planned to submit fixes for its stall-prevention system to the FAA for review last week. That additional problem pertains to software affecting flaps and other flight stabilization hardware and is therefore classified as critical to flight safety, said two officials who spoke on condition of anonymity to discuss the ongoing probe. She said the crew "performed all the procedures, repeatedly, provided by the manufacturer but was not able to control the aircraft."Īs in the aftermath of a Boeing 737 Max 8 crash in Indonesia in October, attention in the Ethiopian Airlines crash has zeroed in on a flight-control system known as the Maneuvering Characteristics Augmentation System, or MCAS, which pushes the nose of the aircraft down to avoid a stall.īut 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 under investigation in the two crashes, and that had led to the aircraft's worldwide grounding. It crashed six minutes later, killing all 157 on board. In a brief summary of the much-anticipated preliminary report on the March 10 crash, Ethiopian Transport Minister Dagmawit Moges told reporters that the "aircraft flight-control system" contributed to the plane's difficulty in gaining altitude after it left Addis Ababa airport. The pilots of Ethiopian Airlines Flight 302 performed all the procedures recommended by Boeing to save their 737 Max 8 aircraft but could not pull it out of a flight-system-induced dive, a preliminary report into the crash concluded Thursday. 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 that pilots of two planes could not counteract a malfunction of the system using the company's recommended procedures.
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