AD 2005-01-16
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Rolls-Royce | plc RB211 Trent 700 Series | Airworthiness Directives; Rolls-Royce plc RB211 Trent 700 Series Turbofan Engines |
Unsafe Condition
Possible multiple LPC fan blade failures due to dovetail root cracks, which could result in an uncontained engine failure and damage to the airplane.
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Required Actions
Initial ultrasonic inspections of the fan blade root with blades removed; repetitive ultrasonic inspections of the fan blade root, with blades removed within 300 cycles-in-service (CIS) intervals, or with blades not removed within 250 CIS intervals.
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Compliance Time
Initial inspections within 1,100 cycles-since-new (CSN) or within 300 cycles-in-service (CIS) from the effective date, whichever occurs first.
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Affected Aircraft
Rolls-Royce plc RB211 Trent 768-60, Trent 772-60, and Trent 772B-60 turbofan engines with LPC fan blade part numbers FK22580, FK23411, FK25441, and FK25968 installed.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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