Is AD 2011-08-10 a recurring Airworthiness Directive?

Yes — AD 2011-08-10 requires a repetitive inspection. Next-due depends on the aircraft's time in service.

Which aircraft does AD 2011-08-10 apply to?

AD 2011-08-10 applies to Rolls-Royce — models RB211-Trent 768-60, RB211-Trent 772-60, RB211. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2011-08-10

recurring

Official AD 2011-08-10 · FR doc 2011-8469 · 2011-04-12 · turbine engine

Airworthiness Directives; Rolls-Royce plc (RR) RB211-Trent 768-60 and Trent 772-60 Turbofan Engines

What this AD requires

We are superseding an existing airworthiness directive (AD) for RR RB211-Trent 700 series turbofan engines. That AD currently requires, for the step aside gearbox (SAGB), repositioning of the oil metering jet up into the oil distributor within the bevel gearshaft, followed by initial and repetitive visual inspections of the magnetic chip detector (MCD). Since we issued that AD, RR has demonstrated that the repositioning of the oil metering jet eliminates the need for the repetitive inspections. This AD changes the applicability from RB211- Trent 700 series turbofan engines, to RB211-Trent 768-60 and Trent 772- 60 turbofan engines. This AD also eliminates the visual inspections of the MCD from the AD requirements. This AD was prompted by RR demonstrating that the repositioning of the oil metering jet eliminates the need for the repetitive inspections, by the need to correct the AD applicability, and by the need to eliminate the visual inspections of the MCD. We are issuing this AD to prevent in-flight engine shutdowns caused by SAGB driving bevel gearshaft ball bearing failure.

Repetitive inspection. Re-inspect. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 2011-08-10 applies to

MakesRolls-Royce

ModelsRB211-Trent 768-60, RB211-Trent 772-60, RB211

Serial-conditional — narrows to serials ?–41052.

Applies to RB211-Trent 768-60 engines prior to serial No. 41052 and RB211-Trent 772-60 engines prior to serial No. 41052 (i.e., serial numbers below 41052).

Whether AD 2011-08-10 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 2011-08-10 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.