NTSB raises serious concerns over LEAP-1B engines on Boeing 737 MAX jets
Aerotime
JUNE 19, 2025
The National Transportation Safety Board (NTSB) has raised serious concerns over CFM International LEAP-1B engines used to power Boeing 737 MAXs. On June 18, 2025, the NTSB issued an urgent safety recommendation over fears that smoke could enter the cockpit or cabin of aircraft equipped with LEAP-1B engines. The safety agency also issued additional recommendations to evaluate the potential for the same issue with LEAP-1A and -1C engines.
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