AD 2020-16-13
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Allison Engine Company | Various | Airworthiness Directives; Rolls-Royce Corporation (Type Certificate Previously Held by Allison Engine Company) Turbofan Engines |
Unsafe Condition
A low-cycle fatigue crack in the dovetail slot for the blade attachment in the 3rd-stage compressor wheel, causing one 3rd-stage compressor blade to release.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace certain 3rd-stage compressor wheels before they accumulate a specified number of cycles.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before accumulating 5,000 cycles since new limits listed in paragraph (g) of this AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Rolls-Royce Corporation (RRC) AE 3007A, AE 3007A1, AE 3007A1/1, AE 3007A1/2, AE 3007A1/3, AE 3007A1E, AE 3007A1P, and AE 3007A3 model turbofan engines.
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
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.