FAA Orders Engine Part Replacements to Prevent In-Flight Shutdowns
Published Date: 2/4/2025
Rule
Summary
The FAA is making sure certain CFM LEAP-1A and LEAP-1C engines stay safe by requiring a key part, the high-pressure turbine rotor seal, to be replaced. This comes after a part failure caused an engine to shut down mid-flight. Engine owners need to act fast to swap out or avoid using these parts, keeping flights smooth and safe without breaking the bank.
Analyzed Economic Effects
2 provisions identified: 0 benefits, 2 costs, 0 mixed.
Required Seal Replacement for LEAP-1A
If you operate aircraft with CFM LEAP-1A engines, the FAA requires the high-pressure turbine (HPT) rotor interstage seal to be removed from service and replaced. The rule was prompted by a part failure that led to an in-flight engine shutdown and is intended to address that unsafe condition.
Prohibition on Installing Affected Seals
The FAA prohibits installing the affected HPT rotor interstage seal parts onto any CFM LEAP-1A or LEAP-1C engine because the part number is interchangeable between those models. This stop-use rule aims to prevent recurrence of the unsafe condition identified in the investigation.
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