Is AD 2013-23-01 a recurring Airworthiness Directive?

No — AD 2013-23-01 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2013-23-01 apply to?

AD 2013-23-01 applies to Rolls-Royce Deutschland Ltd & Co Kg — models Tay 620-15, Tay 650-15, Tay 651-54, Tay. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2013-23-01

one-time

Official AD 2013-23-01 · FR doc 2013-27431 · 2013-11-25 · turbine engine

Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG Turbofan Engines

What this AD requires

We are adopting a new airworthiness directive (AD) for all Rolls-Royce Deutschland Ltd & Co KG (RRD) model Tay 620-15, 650-15, and 651-54 turbofan engines. This AD requires a one-time inspection of the high-pressure (HP) air bleed valve operating mechanism and, depending on findings, corrective action. This AD was prompted by excessive deterioration of the HP air bleed valve operating mechanism, which is influencing the aerodynamic fan flutter margin. This condition, if not corrected, could lead to multiple fan blade failure. We are issuing this AD to prevent multiple fan blade failure, which could result in uncontained engine failure and damage to the airplane.

Which aircraft AD 2013-23-01 applies to

MakesRolls-Royce Deutschland Ltd & Co Kg

ModelsTay 620-15, Tay 650-15, Tay 651-54, Tay

Whether AD 2013-23-01 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 2013-23-01 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.