Is AD 2003-12-15 a recurring Airworthiness Directive?

No — AD 2003-12-15 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2003-12-15 apply to?

AD 2003-12-15 applies to Rolls-Royce — models RB211-535E4, RB211. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2003-12-15

one-time

Official AD 2003-12-15 · FR doc 03-15449 · 2003-06-25 · turbine engine

Airworthiness Directives; Rolls-Royce RB211 Series Turbofan Engines

What this AD requires

This amendment adopts a new airworthiness directive (AD), that is applicable to Rolls-Royce (RR) plc RB211-535E4-37, RB211-535E4-B-37, and RB211-535E4-B-75 series turbofan engines. This amendment requires introducing an alternative technique to ultrasonically inspect installed fan blades on-wing using a surface wave ultrasonic probe. This action also adds the application of Metco 58 blade root coating as an optional terminating action. This amendment is prompted by the discovery of cracks on LPC fan blade roots during an engine overhaul. The actions specified by this AD are intended to detect cracks in LPC fan blade roots, which if not detected, could lead to uncontained multiple fan blade failure, and damage to the airplane.

Which aircraft AD 2003-12-15 applies to

MakesRolls-Royce

ModelsRB211-535E4, RB211

Addresses LPC fan blade root cracking; blades modified per Rolls-Royce service bulletin RB.211-72-C946 (identified by a blue triangle mark near the leading edge tip) require no further action; RB211-535E4 engines operated to Flight Profile A are subject to ultrasonic inspection/relubrication per RB.211-72-C879, Revision 3.

Whether AD 2003-12-15 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 2003-12-15 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.