The National Transportation Safety Board (NTSB) issued an urgent warning on Wednesday about the potential for certain jet engines, when damaged, to allow smoke to enter the cockpit or cabin.

The NTSB safety bulletin warned about CFM International LEAP-1B engines but encouraged evaluation for LEAP-1A and -1C engines. These engines are used on Boeing 737 Max narrow-body passenger jets and on certain Airbus A320neos, according to a press release.

The NTSB recommendations follow two incidents on Southwest Airline flights when birds........

© The Hill