AD 2016-05-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Engine | Alliance Turbofan | Airworthiness Directives; Engine Alliance Turbofan Engines |
Unsafe Condition
Reports of the installation of non-conforming honeycomb cartridges in the high-pressure compressor (HPC) adjacent to the HPC rotor stage 2 to 5 spool and stage 7 to 9 spool.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove and replace the affected HPC rotor stage 2 to 5 spools and stage 7 to 9 spools and adjacent honeycomb cartridges.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 30 days after the effective date of this AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Engine Alliance GP7270 turbofan engines with specific high-pressure compressor (HPC) rotor stage 2 to 5 spools (P/N 382-104-807-0) or HPC rotor stage 7 to 9 spools (P/N 2031M90G04, 2031M90G05, or 2031M90G07), as listed in EA Service Bulletins EAGP7-72-327 and EAGP7-72-328.
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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