AD 2020-08-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Rolls-Royce plc | Various | Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG (Type Certificate Previously Held by Rolls-Royce plc) Turbofan Engines |
| engine | Rolls-Royce | Deutschland Ltd | Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG (Type Certificate Previously Held by Rolls-Royce plc) Turbofan Engines |
Unsafe Condition
small cracks found in the LPC fan blade roots on the concave root flank during an engine overhaul
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
initial and repetitive ultrasonic inspections (USIs) to detect cracks on the installed LPC fan blade roots, both on-wing and at engine overhaul, and replacement of certain blades that exceed the criteria established by the manufacturer
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Compliance Time
Within 50 flight hours
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Affected Aircraft
Rolls-Royce Deutschland Ltd & Co KG (Type Certificate Previously Held by Rolls-Royce plc) Turbofan Engines, RB211-535E4-37, RB211-535E4-B-37, RB211-535E4-B-75, and RB211-535E4-C-37 model turbofan engines
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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