AD 2021-12-01
Effective 06/28/2021 · Published 06/11/2021
Airworthiness Directives; Engine Alliance Turbofan Engines
Summary
The FAA is superseding Airworthiness Directive (AD) 2019-25- 13, which applied to all Engine Alliance (EA) GP7270 and GP7277 model turbofan engines with a certain low-pressure compressor (LPC) 1st-stage fan blade installed. AD 2019-25-13 required an ultrasonic inspection of the affected LPC 1st-stage fan blades and replacement of any affected LPC 1st-stage fan blade that fails the inspection. This AD lowers the init…