Boeing said this week that it still expects approval this year from the Federal Aviation Administration.

Air Canada said on Thursday its Boeing Co 737 MAX pilots were reviewing aircraft systems and alternative flight conditions for the grounded planes, and the carrier would decide on further training pending final recommendations from regulators.

Boeing Co is making "steady progress" on the path to certifying a software update to the grounded 737 MAX and has made the final test flight before a certification flight, its chief executive said on Wednesday.