AD Amdt-39-16489
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; Rolls-Royce Deutschland Ltd. & Co. KG. (RRD) Models Tay 650-15 and Tay 651-54 Turbofan Engines |
| engine | Rolls-Royce | Deutschland Ltd | Airworthiness Directives; Rolls-Royce Deutschland Ltd. & Co. KG. (RRD) Models Tay 650-15 and Tay 651-54 Turbofan Engines |
Unsafe Condition
Excessively corroded low-pressure turbine disks stage 2 and stage 3, caused by the operating environment, could lead to failure of the disks, uncontained engine failure, and damage to the airplane.
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Required Actions
Inspect the low-pressure turbine disks stage 2 and stage 3 for corrosion. Replace any disks found to be excessively corroded. Install a revised low-pressure turbine module M05300AA if not already installed.
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Compliance Time
Within 50 flight hours after the effective date of this AD.
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Affected Aircraft
Rolls-Royce Deutschland Ltd. & Co. KG (RRD) Models Tay 650-15 and Tay 651-54 turbofan engines with a low-pressure (LP) turbine module M05300AA installed. Specifically, Tay 650-15 engines with serial numbers listed in Tables 1, 2, or 3 of the AD, and all Tay 651-54 engines with the specified module installed.
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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