AD 2006-05-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Rolls-Royce | plc Models RB211 Trent 768-60 | Airworthiness Directives; Rolls-Royce plc Models RB211 Trent 768-60, Trent 772-60, and Trent 772B-60 Turbofan Engines |
Unsafe Condition
Damaged heat shields causing fretting of the HP-IP internal oil vent tube and scavenge tube, leading to oil ejection from the HP-IP turbine bearings chamber and potential ignition, which can cause IP shaft fracture, IP turbine overspeed, and uncontained engine failure.
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Required Actions
Initial and repetitive borescope inspections of the HP-IP turbine bearing internal oil vent tube, scavenge tube, and tube heat shields for wear and cracking. Remove tubes from service if found with any cracks beyond serviceable limits. At the next IP (05) module overhaul, but before May 31, 2010, remove the HP-IP bearings support introduced prior to Rolls-Royce Modification 72-E708 and replace with serviceable parts.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the specified compliance intervals for initial and repetitive inspections, and before May 31, 2010, for the terminating action.
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Affected Aircraft
Rolls-Royce plc Models RB211 Trent 768-60, Trent 772-60, and Trent 772B-60 turbofan engines.
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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