AD 2004-13-11
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Rolls-Royce | plc RB211 Trent 875-17 | Airworthiness Directives; Rolls-Royce plc RB211 Trent 875-17, Trent 877-17, Trent 884-17, Trent 884B-17, Trent 892-17, Trent 892B-17, and Trent 895-17 Series Turbofan Engines |
Unsafe Condition
Load-bearing spline flank wear of the intermediate pressure (IP) compressor rear stubshaft and IP turbine shaft, which could result in the loss of drive between the IP turbine and the IP compressor, leading to a turbine rotor overspeed condition, possible 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
Inspect the IP turbine shaft splines for wear. If wear exceeds 0.005 inch, remove the IP turbine shaft. If wear exceeds 0.001 inch, inspect the IP compressor stubshaft splines for wear. If the IP compressor stubshaft spline wear exceeds 0.005 inch, remove the IP compressor stubshaft. Perform repetitive inspections as specified.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the later of 4,500 cycles-since-new (CSN) or 100 cycles after the effective date of this AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Rolls-Royce plc RB211 Trent 875-17, Trent 877-17, Trent 884-17, Trent 892-17, Trent 892B-17, Trent 895-17 series turbofan engines that have not incorporated RR Service Bulletin No. RB.211-72-D495, dated February 7, 2003.
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
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.