Transport i lotnictwo · 22/09/1998

CFM International Issues Airworthiness Directive for CFM56-7B and -7B/2 Engines

The Federal Aviation Administration (FAA) has adopted a new airworthiness directive requiring inspections of CFM56-7B and -7B/2 series turbofan engines to prevent failure of the hydromechanical unit overspeed governor spool valve shaft, which can lead to engine flameout.