“There are so many pieces to any accident,” Daniel K. Elwell said. “I’ve never looked at an accident where there weren’t three or four of five links in the chain, any one of which, if it hadn’t gone wrong, the plane would have survived.”
A Boeing 737 MAX 8, being built for American Airlines, makes a turn on the runway as it's readied for takeoff on a test flight May 8 in Renton, Wash. The Boeing 737 Max 8s have been grounded following deadly crashes in Indonesia and Ethiopia.
“There are so many pieces to any accident,” Elwell said. “I’ve never looked at an accident where there weren’t three or four of five links in the chain, any one of which, if it hadn’t gone wrong, the plane would have survived.” “I want to emphasize at the outset that the FAA welcomes scrutiny that helps make us better. That is how our global leadership will endure,” Elwell told the committee.
Boeing has been working on a software fix for the system, which will make it use information from two external sensors rather than one. It will also essentially reduce the strength of the system so it cannot overpower pilots. Graves added: “That fundamental error appears to have had a domino effect on events that followed after that.”
Boeing acknowledged earlier this month, following a report in the Wall Street Journal, that a cockpit indicator on Max jets, known as an “angle of attack” disagree alert, didn’t work on most planes because of a software problem. The alert is supposed to go off if a pair of key sensors have inconsistent readings. But the disagree alert on the Max planes didn’t work unless airlines paid for a separate, optional indicator, the company said.
Elwell was also asked about a November meeting between Boeing executives and pilots at the Allied Pilots Association. The Washington Post reported last month that some pilots in the meeting were furious they were not told about the automated MCAS, and the Dallas Morning News this week published a recording from that meeting. The Post obtained a copy of the recording Wednesday.
Capt. Daniel F. Carey, the Allied Pilots Association president, said Boeing “did not treat the 737 Max 8 situation like the emergency it was. … American Airlines pilots have been pressing Boeing for answers because we owe it to our passengers and the 346 people who lost their lives to do everything we can to prevent another tragedy.”
Dickson, 61, who appeared before the Senate Committee on Commerce, Science and Transportation, would take over leadership of the agency as it faces multiple investigations into its process for certifying the 737 Max.
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