AD 2017-08-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | CFE | Company Turbofan | Airworthiness Directives; CFE Company Turbofan Engines |
Unsafe Condition
Quality escape for high-pressure compressor (HPC) impellers made from forgings with nonconforming material grain size, which could lead to uncontained failure of the HPC impeller, damage to the engine, and damage to the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove all affected HPC impellers from service at the next piece-part exposure and replace with a part eligible for installation.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the compliance times specified in the AD, unless already done.
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Affected Aircraft
CFE Company CFE738-1-1B model turbofan engines with a high-pressure compressor (HPC) impeller, part number (P/N) 6079T77P07 or P/N 6079T77P09, with a serial number listed in CFE Service Bulletin (SB) CFE738-72-8080, Revision 0, dated August 18, 2016.
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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