AD 2012-17-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Rolls-Royce | plc | Airworthiness Directives; Rolls-Royce plc Turbofan Engines |
Unsafe Condition
Intermediate pressure (IP) turbine discs with steel inclusions may fail before reaching their current mandatory life limits, potentially leading to uncontained engine failure and damage to the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove from service IP turbine discs with serial numbers listed in Table 1 within 9,700 standard duty cycles since new.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 9,700 standard duty cycles since new.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Rolls-Royce plc RB211-Trent 875-17, 877-17, 884-17, 884B-17, 892-17, 892B-17, and 895-17 turbofan engines with intermediate pressure (IP) turbine discs having serial numbers listed in Table 1 of the AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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