The head of the Federal Aviation Administration said Wednesday he believes documentation on Boeing's 737 MAX should have told pilots more about the safety system that's suspect in two crashes that killed 346 people.
Airplane engine parts are seen at the scene of the Ethiopian Airlines Flight ET 302 plane crash, near the town of Bishoftu, southeast of Addis Ababa, Ethiopia March 11, 2019.
DeFazio, an Oregon Democrat, said he was disappointed that a single sensor's failure had led to the crashes.
Major US carriers have said they expect to resume flights on the 737 MAX in August, but that timeframe is contingent on FAA approval of the upgrade.
The FAA has been in the spotlight over how much autonomy it's given to Boeing and the review process it must complete before a plane is deemed safe for public use.
The FAA reportedly finds that senior agency officials failed to monitor key safety assessments of Boeing's 737 Max flight-control system.More news: Trump raises tariffs on $200 billion of Chinese goods, prompting Chinese warning
Jet Airways, which is seeking $1.2 billion to fly again, had deals for 200 of Boeing's 737 Max aircraft. Boeing is redesigning the system to make it less prone to operate in error.
The release of the recording came as the House transportation committee opened a hearing into the role of Boeing's regulator, the Federal Aviation Administration (FAA), in certifying the Max. "Safety is our top priority when we design, build, deliver and maintain Boeing aircraft".
Acting FAA head Daniel Elwell is scheduled to testify Wednesday while a Senate committee hears from President Donald Trump's pick to lead the agency on a permanent basis.
Elwell defended the overall system under which the 737 MAX was certified. So far he's had nothing.
Southwest LUV has accused Boeing of not disclosing that a standard safety feature created to warn pilots about malfunctioning sensors had been deactivated on the Max before the Lion Air crash in Indonesia.
"I$3 thought that the MCAS should have been more adequately explained in the ops manual and the flight manual", Mr Elwell said.More news: John Wick: Chapter 3 - Parabellum Review: 8 Ups & 2 Downs
The FAA has concluded that the so-called angle-of-attack sensor disagree light wasn't critical to safety.
"The committee's investigation is just getting started, and it will take some time to get answers, but one thing is clear right now: The FAA has a credibility problem", he said. But the tragedies are shocking, including for families of victims, he said. He said he's hopeful they will provide the documents voluntarily.
The agency's preliminary findings are the first to shed light on how the faulty design of the MCAS system ended up in Boeing's now-grounded fleet.
The FAA is still the "gold standard", Graves said. A total of 157 people died in a similar crash in Ethiopia. Sumwalt said he can't comment beyond what investigators in those two countries have said under the United Nations treaty governing accident probes.
The 737 Max, Boeing's best-selling aircraft, has been grounded since March 13 as the manufacturer works on new software to address the accidents.
"It sure looks like this is an issue that was directly related to the 737 Max". It automatically commands a relatively modest dive if it senses a plane's nose has gotten too high.More news: De Blasio Holds Campaign-Style Rally In Trump Tower
However, he conceded pilots could have been better informed about the automated flight-control system implicated in both crashes.