CFM Warns FAA Of Manufacturing Defect In Airbus A320neo LEAP Engines

The Federal Aviation Administration (FAA) has proposed for Airbus A320neo family aircraft operators, which have opted for certain CFM International LEAP-1A engines, to replace potentially unsafe high-pressure turbine (HPT) rotor interstage seals with serviceable parts. The FAA issued the notice of proposed rulemaking (NPRM) after the engine manufacturer notified the regulator about sub-surface anomalies that developed during the manufacturing process of the HPT’s billets.