Type:Rule
Citation:90 FR 11116
Reading Time:about 11 minutes
The Federal Aviation Administration (FAA) has issued a final rule introducing a new airworthiness directive (AD) for certain CFM International LEAP-1 model engines due to a manufacturing issue involving turbine disks with incorrect grain size. This directive mandates the removal and replacement of certain low-pressure turbine disks to prevent potential engine damage and ensure flight safety. Effective April 8, 2025, these actions are required to address any unsafe conditions in affected engines, thus promoting the safe operation of aircraft.
Simple Explanation
The FAA is telling planes with certain engines to replace some parts because they aren't made quite right and could break. It's like making sure a bike has strong wheels so it can be safe to ride.