AD 2012-18-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Rolls-Royce | plc | Airworthiness Directives; Rolls-Royce plc Turbofan Engines |
Unsafe Condition
Multiple low-pressure (LP) compressor blades failing due to blade root cracks, which could lead to 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
Initial and repetitive ultrasonic inspections (UIs) of certain LP compressor blades identified by serial number (S/N). The inspections expand to include blades listed by S/N in Appendices 3H through 3L of RR plc Alert Service Bulletin (ASB) No. RB.211-72-AG244, Revision 4, dated December 22, 2011. Before inspecting the blades, remove the air intake fairing/spinner and spinner extension and annulus fillers.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the timeframes specified in Table 1 of the AD, with initial inspections due within a certain number of months after the effective date.
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Affected Aircraft
Rolls-Royce plc RB211-Trent 875-17, RB211-Trent 877-17, RB211-Trent 884-17, RB211-Trent 884B-17, RB211-Trent 892-17, RB211-Trent 892B-17, and RB211-Trent 895-17 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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