AD 2013-05-20
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Rolls-Royce | Deutschland Ltd & Co KG Turbojet | Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG Turbojet Engines |
Unsafe Condition
Bolts with reduced material properties may have been installed in some engines, potentially leading to bolt failure and uncontained turbine disc fracture.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Visually inspect bolts in the LPT support assembly, HPT bearing support assembly, and HPT air seal sleeve. Replace any broken, brown, or rough-oxidized bolts before further flight. Inspect adjacent discs for damage if a broken bolt is found.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 100 engine cycles or before accumulating 4,500 engine cycles since the last shop visit, depending on engine cycle count.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Rolls-Royce Deutschland Ltd & Co KG Spey 511-8 turbojet engines, serial numbers 8847, 8853, 8879, 8989, 8994, and 9817, with a last shop visit before November 15, 2007.
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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