2025-09205RuleWallet

FAA Orders Checks on GE Engine Air Duct Parts

Published Date: 5/22/2025

Rule

Summary

If you own or operate certain GE CF34-10E series engines, the FAA wants you to check and fix parts that help keep the engine’s air ducts in place. This is because some parts were found to be failing, which could cause safety issues. You’ll need to inspect, repair, and update these parts soon to keep your engines flying safely and avoid costly problems later.

Analyzed Economic Effects

2 provisions identified: 1 benefits, 1 costs, 0 mixed.

Required inspections and rework for CF34-10E engines

If you own or operate certain GE CF34-10E series engines (models CF34-10E2A1, CF34-10E5, CF34-10E5A1, CF34-10E6, CF34-10E6A1, CF34-10E7, and CF34-10E7-B) and they have certain part-numbered HPT shroud/LPT nozzle assemblies installed, the FAA requires a visual inspection of the combustion case for wear and gouges, repair if necessary, and rework of the affected HPT shroud/LPT nozzle assemblies to add positive retention for the support air duct.

FAA AD addresses failed support air ducts

The AD was prompted by reports of failed retention features of the inner and outer support air ducts (spoolies) found during engine disassembly. The FAA issued this AD to address that unsafe condition and require corrective actions to help prevent related safety issues.

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Key Dates

Published Date
5/22/2025

Department and Agencies

Department
Independent Agency
Agency
Transportation Department
Federal Aviation Administration
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