“….MCAS (on 737MAX) has to go,” said the manager at Canadian Aviation Regulator on Friday.
According to New York Times, Transport Canada official sent an email to Boeing urging the company to remove Maneuvering Characteristics Augmentation System (MCAS) from 737MAX aircraft.
“The only way I see moving forward at this point, is that MCAS has to go,” the official, Jim Marko, the manager in aircraft integration and safety assessment at Transport Canada Civil Aviation, wrote in the email. He sent the email on Tuesday to officials at the Federal Aviation Administration, the European Union Aviation Safety Agency and Brazil’s National Civil Aviation Agency, reported NYT.
However, Transport Canada said “The views are at the working level and have not been subject to systematic review by Transport Canada.”
Investigations into the two 737MAX crashes suggest that MCAS, erroneously engaged, forcing the planes’ noses to pitch down whenever the AoA sensors detect a stall pattern, and that pilots were unable to regain control of the aircraft.
MCAS, wLinh Le, a system safety engineer at the F.A.A., shared Mr. Marko’s message with others at the agency. He noted that the Canadian official believed that “MCAS introduces catastrophic hazards that weren’t there before,” that “it and the fix add too much complexity,” that “there have been many revisions to the software” and that “each was a band-aid.” reported NYT
A senior aviation expert, said removing MCAS from the 737 MAX would present only a “minor” risk, and also without MCAS the plane would unlikely comply with the airworthiness certification requirements.
In a statement, Boeing said on Friday “We continue to work with the F.A.A. and global regulators to provide them the information they are requesting to certify the Max for safe return to service.”