Ethiopian authorities haven't yet released a final report into what caused the plane crash but have confirmed the pilot of the doomed Boeing 737 Max 8 plane had radioed a distress call. "So yes, the pilots were well-briefed on the airworthiness directive". Earlier, Singapore, Australia, Malaysia and Oman had also temporarily suspended the aircraft, following China, Indonesia and others the day before.
According to Opher Dach, consul of Israel's embassy in Ethiopia, the team hopes to join the crash site on Tuesday. The news agency also notes that acting Defense Secretary Patrick Shanahan was a longtime Boeing manager.
The agency says there are 74 Boeing 737 Max 8 and Max 9 planes registered in the USA, with 387 worldwide.
"The similarities with Lion Air are too great not to be concerned", CNN aviation expert Mary Schiavo said after the second disaster - and that concern has prompted numerous countries to ground Boeing MAX jets out of caution. And Nikki Haley, Trump's former United Nations ambassador, has been nominated to join Boeing's board. "Chief Exec's personal plea to Trump leaves more questions than answers", he said.
But October's Lion Air crash in Indonesia sparked a debate on automation, particularly over a software system created to push the plane down to stop a stall during flight.
Pressure was growing in the United States for regulators to act, with American and Canadian carriers now virtually alone in operating 737 Max flights, the Guardian reported.
It shied away, however, from the even rarer step of pulling the safety certification for the plane itself, focusing instead on the softer process of restricting its use by airlines. "The pilots were well briefed on the air ordinance filed", he said.
Those displays could be crucial in avoiding a sudden downward pitch - a phenomenon Boeing and the FAA acknowledged as a risk, in the airworthiness bulletin that was issued shortly after the crash of Lion Air Flight 610.
Since the news of the crash, China has chose to ground all of its 737 fleet, joining Ethiopian Airlines which grounded its similar fleet soon after the accident.
If a certified aircraft has outstanding airworthiness directives that have not been complied with, the aircraft is not considered airworthy.
The three U.S. airlines using the 737 MAX - Southwest Airlines Co, American Airlines Group Inc and United Airlines - stood by the aircraft, although many potential passengers took to social media to express concerns, asking if they could change flights or cancel.
"He asked to return back to base and he was given clearance...that was at 8:44 am, the same time the aeroplane disappeared from the radar", he said.