Is AD 2005-26-18 a recurring Airworthiness Directive?

No — AD 2005-26-18 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2005-26-18 apply to?

AD 2005-26-18 applies to Rolls-Royce Deutschland, Rolls-Royce Plc — models Tay 650-15, Tay 651-54, Tay. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2005-26-18

one-time

Official AD 2005-26-18 · FR doc 05-24642 · 2005-12-30 · turbine engine

Airworthiness Directives; Rolls-Royce Deutschland (Formerly Rolls-Royce plc) Models Tay 650-15 and 651-54 Turbofan Engines

What this AD requires

The FAA is superseding an existing airworthiness directive (AD) for Rolls-Royce Deutschland (formerly Rolls-Royce plc) (RRD) models Tay 650-15 and 651-54 turbofan engines. That AD currently 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. That AD 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 ad requires the same actions but extends the terminating action compliance time for Tay 650- 15 engines. This AD also includes references to later revisions of two of the applicable RRD service bulletins (SBs). This AD results from RRD relaxing the terminating action compliance time for Tay 650-15 engines due to reassessment by RRD. We are issuing this AD to prevent an uncontained failure of the HPC stage 11/12 disc spacer, which could result in damage to the airplane.

Which aircraft AD 2005-26-18 applies to

MakesRolls-Royce DeutschlandRolls-Royce Plc

ModelsTay 650-15, Tay 651-54, Tay

Part-conditional — BLT3602, DU909, DU818.

Applies only to engines with high pressure compressor outlet guide vane retaining bolts P/N BLT3602, DU909, or DU818 installed.

Whether AD 2005-26-18 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:

Method of compliance — The specific action taken (inspected, replaced, modified) and to what revision.

Date — When the work was done.

Aircraft time — Total time in service / tach at compliance — how recurring next-due is computed.

Signature & certificate — The A&P/IA who returned it to service, with certificate number.

Is AD 2005-26-18 complied with on your aircraft?

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.