In this May 8, 2019 photo, a Boeing 737 Max 8 takes-off on a test flight in Renton. (AP Photo/Elaine Thompson, File)

In this May 8, 2019 photo, a Boeing 737 Max 8 takes-off on a test flight in Renton. (AP Photo/Elaine Thompson, File)

Group finds US aircraft approval process safe, despite crashes

The committee differed sharply with legislators who are investigating Boeing and the FAA.

By Tom Krisher and David Koenig / Associated Press

A government committee asked to review U.S. approval of new passenger planes after two deadly crashes involving the Boeing 737 Max has found that the system is safe and effective but could be improved.

The committee differed sharply with legislators who are investigating Boeing and the Federal Aviation Administration, which approved the Max. Key lawmakers have said they may try to stop the FAA from letting Boeing do some inspections and safety analysis on its own planes.

Thursday’s report came from a committee appointed by Transportation Secretary Elaine Chao in April, after crashes in Indonesia and Ethiopia killed 346 people and led regulators to ground all Max jets worldwide.

The committee said the FAA’s system of delegating some safety work to aircraft manufacturers is effective and helps the U.S. aerospace industry thrive.

Lee Moak, a former airline pilot and union leader who co-chaired the committee, said its members did not look at internal communications in which Boeing employees raised safety alarms about the Max while it was being developed, and admitted misleading regulators.

“It was not the purview of, or charter of, the committee to look at or investigate email traffic,” he told reporters.

More than 100 pages of internal Boeing emails and text messages have been released as the result of congressional investigations into the company and the plane. In some of the messages, test pilots and other unnamed employees questioned the safety of the Max, called the plane a “joke” and talked about concealing problems from regulators.

Last week, leaders of the House Transportation Committee cited those documents and accused Boeing of deceiving regulators. Committee chairman Peter DeFazio, D-Ore., and Rick Larsen, D-Wash., chairman of the panel’s aviation subcommittee, said they will introduce legislation to strip the company of all or part of its authority to help approve its own aircraft as safe to fly.

Yet the special committee to review the FAA’s certification process wrote that the FAA’s system of delegating some inspections to aircraft manufacturers is “rigorous, robust and overseen by engineers, inspectors, test pilots and managers committed to the primacy of safety.” The committee found that it took five years for the FAA to certify the Max.

The committee wrote that it didn’t do an investigation, but took a collaborative approach. Its mission was “to collect and analyze information, not find fault.”

Asked about possible mistakes in approving the Max, Moak said that was other groups to investigate. “What we saw was thorough work by aviation professionals,” with some room for improvement, he said.

The committee recommended that the system of delegating inspections to manufacturers should continue, and the FAA and industry should work together to address concerns about “potential undue pressure” on company employees designated to do inspections as planes work through the approval process.

However Moak, a former president of the Air Line Pilots Association, said the committee found no evidence of pressure on Boeing employees. It also found no reason to dramatically change delegation of inspections.

“We believe that delegated authority in itself enhances aviation safety as long as it is coupled with proper oversight and with safety management systems,” he said, referring to systems in which aviation employees are encouraged to voluntarily report safety concerns without fear of reprisal.

Initially the FAA determined that 35 of 93 elements of the Max could be delegated to Boeing employees, with 58 supervised by the FAA, the report said. But the ratio of delegated tasks changed through the years “as the FAA’s confidence in the aircraft design and related risk analyses evolved, including Boeing’s ability to manage such elements.”

The committee wrote that U.S. commercial aviation is a “model of safety efficiency and innovation across the world,” safely handling about 44,000 flights per day all year. Since 1996, the U.S. air carrier fatality rate has dropped from 80.9 per 100 million passengers to 0.6 per 100 million in fiscal year 2019, the report said.

The report said that aviation safety experts interviewed by the committee agreed that the FAA’s decision to certify the Max as an update to previous generations of 737s rather than a new type of aircraft didn’t affect the Max’s safety. Treating the Max as a new aircraft type “would not have produced a safer airplane,” the committee wrote.

I nvestigators have implicated new automated flight control software called MCAS as a factor in the crashes. In each crash, a single faulty sensor caused the system to activate and push down the nose of the plane. Boeing did not tell pilots about MCAS until after the Indonesian Lion Air crash, and regulators at the FAA didn’t know much about it either.

The House Transportation Committee disclosed an internal FAA analysis made after the first crash, which estimated that there would be 15 more fatal crashes over 45 years until Boeing fixed MCAS. Yet the FAA did not ground the plane until after the second crash.

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