AD 2017-08-08
Effective 05/31/2017 · Published 04/26/2017
Airworthiness Directives; CFE Company Turbofan Engines
Summary
We are adopting a new airworthiness directive (AD) for certain CFE Company (CFE) turbofan engines. This AD was prompted by a quality escape for high-pressure compressor (HPC) impellers made from forgings with nonconforming material grain size. This AD requires removal of the HPC impeller. We are issuing this AD to correct the unsafe condition on these products.