The acting director of the FAA says Boeing should have done more to explain an automated flight control system on its 737 Max aircraft that is believed to have played a roll in two crashes of passenger jets since october.
Daniel Elwell testified in front of the house aviation subcommittee about the problems saying his agency didn’t have enough evidence to ground the jet last year.
Boeing is already the subject of a criminal investigation by the Justice Department.
Boeing customers Southwest Airlines and American Airlines and their pilot unions have received subpoenas related to that investigation.
The Transportation Department and two congressional committees are looking into the FAA’s relationship with Boeing.