NTSB Recommends Modifications to LEAP-1B Engines Some CFM International jet engines allowed smoke to enter the cockpit or cabin when damaged WASHINGTON (June 18, 2025) — The National Transportation Safety Board issued an urgent safety recommendation Wednesday to address the possibility of smoke entering the cockpit or cabin of airplanes equipped with CFM International LEAP-1B engines and issued additional recommendations to evaluate the
NTSB raises serious concerns over LEAP-1B engines - AeroTime The safety agency also issued additional recommendations to evaluate the potential for the same issue with LEAP-1A and -1C engines LEAP-1B engines are used exclusively by Boeing 737 MAX jets while LEAP-1A and -1C engines are used on some variants of the A320neo family aircraft and COMAC C919s
NTSB: Boeing 737 Max and some Airbus engines need fix to prevent smoke . . . The problem detailed by the National Transportation Safety Board emerged after two bird strikes involving Southwest Airlines planes in 2023 — one in Havana, Cuba, and another in New Orleans The Federal Aviation Administration and Boeing already warned airlines and pilots about the problem and the engine maker has been working on a fix
NTSB Issues Urgent Safety Warning for Boeing 737 Max Engines These events prompted the U S National Transportation Safety Board (NTSB) to issue an urgent safety recommendation targeting planes equipped with CFM International LEAP-1B engines In its statement, the NTSB warned of the risk of smoke entering the cockpit or cabin due to potential engine oil leaks in the ventilation system