AD 2013-02-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Engine | Alliance Turbofan | Airworthiness Directives; Engine Alliance Turbofan Engines |
Unsafe Condition
Inadequate cooling of the HPT stage 2 nozzle, leading to damage, burn-through of the turbine case, and engine shutdown.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Initially borescope inspect the HPT stage 2 nozzle within specified cycles since new or within 50 cycles if already at 1,450 cycles. Repetitively inspect every 100 additional cycles. Remove nozzle from service if burn holes are detected. At the next engine shop visit, remove HPT stage 2 nozzles P/N 2101M24G01, 2101M24G02, and 2101M24G03 from service.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within specified cycles since new or within 50 cycles if already at 1,450 cycles since new.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
All Engine Alliance GP7270 and GP7277 turbofan engines with HPT stage 2 nozzles, part numbers 2101M24G01, 2101M24G02, or 2101M24G03.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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