AD 2005-01-15
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Rolls-Royce | plc RB211 Trent 875 | Airworthiness Directives; Rolls-Royce plc RB211 Trent 875, 877, 884, 884B, 892, 892B, and 895 Series Turbofan Engines |
Unsafe Condition
Cracked low pressure compressor (LPC) fan blades due to potential breakdown of blade coating and lubrication, leading to multiple LPC fan blade failures and uncontained engine failure.
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Required Actions
Initial and repetitive ultrasonic inspections of the dovetail roots of LPC fan blades with specified part numbers. Reduce initial inspection threshold for certain blades from 2,400 cycles-since-new (CSN) to 1,200 CSN. Reduce repetitive inspection threshold for other blades from 1,200 CSN to 600 CSN. Define a terminating action to replace LPC fan blades with reworked, relubricated, and remarked blades or new blades with additional blade root processing requirements.
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Compliance Time
Within specified compliance times based on cycles-since-new (CSN) thresholds for initial and repetitive inspections.
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Affected Aircraft
Rolls-Royce plc RB211 Trent 875, 877, 884, 884B, 892, 892B, and 895 series turbofan engines with certain part number (P/N) LPC fan blades installed.
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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