The European Aviation Safety Agency (EASA) and the FAA late April 20 issued emergency airworthiness directives (AD) calling for inspections of fan blades on CFM56-7B engines that power Boeing 737NGs.  The emergency ADs come three days after a CFM56-7B-powered Southwest Airlines 737-700 carrying 144 passengers and five crew made an emergency landing at Philadelphia International Airport after experiencing an apparent left-engine explosion. One ...


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