A senior safety official at Canada’s air-safety regulator has called for the MCAS flight control software to be scrapped from the Boeing 737 Max.
A veteran engineering manager at Transport Canada doesn’t have confidence in the system, citing ‘new issues constantly appearing.’
In an email to air safety counterparts in the US, Europe and Brazil, Jim Marko wrote: "The only way I see moving forward at this point … is that MCAS has to go."
"Judging from the number and degree of open issues that we have, I am feeling that final decisions on acceptance will not be technically based. This leaves me with a level of uneasiness that I cannot sit idly by and watch it pass by."
Transport Canada has not explicitly backed Marko’s views although it hasn’t rejected them either.
"The views are at the working level and have not been subject to systematic review by Transport Canada," the agency’s director general for civil aviation, Nicholas Robinson said.
It raises more doubts at such a late stage that Boeing can still satisfy air safety regulators.
Boeing has steadfastly said it expects to be granted FAA approval by the end of this year.
