Grounded: A worker walks next to a Boeing 737 MAX 8 plane parked at Boeing Field in Seattle. US.
"Safety is at the core of who we are at Boeing, and ensuring safe and reliable travel on our airplanes is an enduring value and our absolute commitment to everyone", Muilenburg said.
Air Canada has made a decision to remove its grounded Boeing 737 Max 8 jets from service until at least July 1 in order to provide more certainty for passengers that wish to book flights in the coming months.
A Boeing 737 MAX 8 plane operated by Ethiopian Airlines crashed shortly after taking off from Addis Ababa on March 10, killing all 157 people on board. The same aspect has been noted as a link to the investigations on the Lion Air crash roughly five months ago.
Both planes were 737 MAX 8s and crashed minutes after takeoff with pilots reporting flight control problems.
The motors on the new plane are heavier than in the 737 NG, posing more of a risk of stalling, so the MCAS was created to protect against the possibility.
The SA Civil Aviation Authority (SACAA), like the US FAA, did not order the grounding of this aircraft model as a precaution immediately after the Ethiopian Airlines crash.
Ledwaba emphasised that immediately after the Ethiopian Airlines crash, SACAA started its engagements with Comair and Boeing.
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Shares of Boeing dropped another 1.8 percent on Monday to $372.28.
The Wall Street Journal reported that prosecutors and the U.S. Department of Transportation were scrutinizing the FAA's approval of the MAX series, while a jury had issued a subpoena to at least one person involved in its development.
Boeing's CEO on Monday responded to growing questions about the company's 737 Max plane.
Boeing and the FAA declined to comment on that.
The agency doesn't have the budget to do every test, and "the use of designees is absolutely necessary", said Steve Wallace, the former head of FAA accident investigations.
As investigations into the exact cause of the most recent crash continued over the weekend, Ethiopia's government said there was a "clear similarity" between the two incidents.
The standoff raised concerns Boeing was too close to the Trump administration, after chief executive Dennis Muilenburg personally called the President on Tuesday 12 March to reassure him the plane was safe.
Boeing jets were featured on a draft list of American products China would buy to reduce its trade surplus with the US, the people said, asking not to be identified discussing private deliberations.