AD 2016-22-11
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Engine Alliance | Turbofan | Airworthiness Directives; Engine Alliance Turbofan Engines |
Unsafe Condition
inadequate cooling of the HPT stage 1 shroud and stage 2 nozzle, leading to damage to the HPT stage 2 nozzle, burn-through of the turbine case, and in-flight shutdown
Required Actions
Perform a 360 degree borescope inspection of the HPT stage 1 shroud and stage 2 nozzle, and remove from service any HPT stage 2 nozzle segment, P/N 2101M24G01, 2101M24G02, 2101M24G03, 2101M24G04, 2101M24G05, or 2101M24G06, at next piece-part exposure
Compliance Time
Within 50 flight hours
Affected Aircraft
Engine Alliance GP7270 and GP7277 turbofan engines with a high-pressure turbine (HPT) stage 2 nozzle segment, part number (P/N) 2101M24G01, 2101M24G02, 2101M24G03, 2101M24G04, 2101M24G05, or 2101M24G06, installed
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.