AD 2000-04-22
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Rolls-Royce plc | RB211-524G2-T-19 | Airworthiness Directives; Rolls-Royce plc 524 Series and Trent 768-60 and 772-60 Turbofan Engines. |
| engine | Rolls-Royce plc | RB211-524G3-T-19 | Airworthiness Directives; Rolls-Royce plc 524 Series and Trent 768-60 and 772-60 Turbofan Engines. |
| engine | Rolls-Royce plc | RB211-524H2-T-19 | Airworthiness Directives; Rolls-Royce plc 524 Series and Trent 768-60 and 772-60 Turbofan Engines. |
| engine | Rolls-Royce plc | RB211 Trent 768-60 | Airworthiness Directives; Rolls-Royce plc 524 Series and Trent 768-60 and 772-60 Turbofan Engines. |
| engine | Rolls-Royce plc | RB211 Trent 772-60 | Airworthiness Directives; Rolls-Royce plc 524 Series and Trent 768-60 and 772-60 Turbofan Engines. |
Unsafe Condition
Failure of the HPC-to-HPT joint bolt assemblies (P/N BLT5543) due to material selection (INCO 909), which could result in a cracked stage 6 HPC disk, possible uncontained engine failure, and damage to the airplane.
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Required Actions
Replace INCO 909 HPC-to-HPT joint bolt assemblies (P/N BLT5543) with INCO 718 assemblies (P/N BLT5541) before further flight, following Rolls-Royce SB RB.211-72-C491, Rev 1.
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Compliance Time
Before further flight
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Affected Aircraft
Rolls-Royce RB211-524G2-T-19, RB211-524G3-T-19, RB211-524H2-T-19, Trent 768-60, and Trent 772-60 engines installed on Airbus A330 and Boeing 747 series airplanes.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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