AD 2017-10-25
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Rolls-Royce | Deutschland Ltd & Co KG Turbofan | Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG Turbofan Engines |
Unsafe Condition
Failure to replace an affected HPC stage 12 rotor disk before exceeding the revised life limits could lead to an uncontained engine failure, possibly resulting in damage to, and/or reduced control of, the aeroplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Recalculate the consumed and remaining service life for HPC stage 12 rotor disks P/N EU25917, P/N EU56963, P/N JR10242, and P/N JR18449. Implement the reduced life limits as necessary based on the recalculated service life.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
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Affected Aircraft
Rolls-Royce Deutschland Ltd & Co KG Spey 506-14A, Spey 555-15, Spey 555-15H, Spey 555-15N, and Spey 555-15P turbofan engines with HPC stage 12 rotor disks P/N EU25917, P/N EU56963, P/N JR10242, or P/N JR18449 installed.
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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