CNN —
The National Transportation Safety Board issued a rare, urgent safety bulletin warning of potential problems with the jet engines on Boeing 737 Max aircraft.
The recommendation was inspired by two incidents on Southwest Airlines flights that hit birds. The NTSB found issues with CFM International LEAP-1B engines that, when damaged, can cause smoke to “to enter the ventilation system and ultimately the cockpit or passenger cabin.”
Smoke in the cockpit is classified as an extreme danger in aviation as it can overcome and incapacitate pilots.
The NTSB says it
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