Superseded. This AD was superseded by AD 2019-02-04. Verify which one applies to your serial and effectivity before any maintenance action.
AD 2018-22-05
Effective 11/23/2018 · Published 11/08/2018
Airworthiness Directives; Engine Alliance Turbofan Engines
Summary
We are adopting a new airworthiness directive (AD) for all Engine Alliance (EA) GP7270, GP7272, and GP7277 turbofan engines with a certain high-pressure turbine (HPT) case installed. This AD requires removal of affected HPT stator cases (HPT cases) from service and their replacement with a part eligible for installation. This AD was prompted by the discovery of a quality escape at a manufacturing facility involving…