Airworthiness Directive 2002-01-29
one-timeAirworthiness Directives; Rolls-Royce, plc. Models Tay 650-15 and 651-54 Turbofan Engines
What this AD requires
This amendment adopts a new airworthiness directive (AD) that is applicable to Rolls-Royce, plc (RR) models Tay 650-15 and 651-54 turbofan engines. This action requires borescope inspection of the high pressure compressor (HPC) stage 12 disc assembly to detect damage caused by HPC outlet guide vane (OGV) retaining bolt failure, and replacement of unserviceable parts with serviceable parts. This action also requires as terminating action, the incorporation of a new design retention arrangement for the HPC OGV, to prevent HPC OGV retaining bolt failure. This amendment is prompted by service reports of cracked HPC stage 11/12 disc spacers. The actions specified in this AD are intended to prevent an uncontained failure of the HPC stage 11/12 disc spacer, which could result in damage to the airplane.
Which aircraft AD 2002-01-29 applies to
Applies to Tay 650-15 and Tay 651-54 engines; requires initial and repetitive borescope inspections of the rear side of the HPC stage 12 rotor disk (OGV/stage 11-12 disc spacer area) per RR SB Tay-72-1483 Rev.2, with terminating action of installing new-design OGV retaining/locking hardware (bolts P/N BLT3602, DU909, DU818 among others per RR SB Tay-72-1498) required by October 1, 2005 for Tay 650-15 engines and October 1, 2012 for Tay 651-54 engines, after which the inspections are no longer required.
Whether AD 2002-01-29 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.
How AD compliance is recorded
A valid compliance record (14 CFR 43.9) states:
Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.
Look up a tail number →Read the full directive (Federal Register)Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.