EASA AD US-2021-26-04
Engine - Fan Hub Assembly - Inspection / Replacement
The Federal Aviation Administration's Airworthiness Directive 2021-26-04 addresses Engine Alliance GP7270 and GP7277 model turbofan engines. This directive mandates inspections and potential replacement of the engine fan hub assembly to prevent uncontained engine failures. It applies specifically to engine fan hub assemblies with part numbers 5760221, 5760321, or 5760001.