Is AD 01-19936 a recurring Airworthiness Directive?

Yes — AD 01-19936 requires a repetitive inspection. Next-due depends on the aircraft's time in service.

Which aircraft does AD 01-19936 apply to?

AD 01-19936 applies to Rolls-Royce — models RB211. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 01-19936

recurring

AD 01-19936 · 2001-08-10 · turbine engine

Airworthiness Directives; Rolls-Royce plc. RB211 Trent Turbofan Engines

What this AD requires

This amendment supersedes an existing airworthiness directive (AD) that is applicable to Rolls-Royce plc. (RR) RB211 Trent 768-60, Trent 772-60, and Trent 772B-60 turbofan engines. That AD currently requires the removal of low pressure compressor (LPC) fan blades, initial and repetitive ultrasonic inspections for cracks in LPC fan blade dovetail roots, and if necessary, replacement with serviceable parts. This amendment requires earlier initial and more frequent repetitive ultrasonic inspections of LPC fan blades, with inspection thresholds and intervals specified by engine model. This amendment is prompted by data collected by RR, that identifies the need to inspect LPC fan blade dovetail roots at an earlier initial threshold and at more frequent intervals than is required by the existing AD. The actions specified in this AD are intended to prevent possible multiple LPC fan blade failures, which could result in an uncontained engine failure and damage to the airplane.

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 01-19936 applies to

MakesRolls-Royce

ModelsRB211

Part-conditional — FK22580, FK23411, FK25411, FK25968.

Applies to Rolls-Royce RB211 series turbofan engines with LPC fan blades P/N FK22580, FK23411, FK25411, or FK25968 installed, per RR SB RB.211-72-C878 Rev 4; initial/repetitive ultrasonic inspection intervals vary by engine variant (source table lists '768-60', '772-60', '772B-60', which are ambiguous/garbled in the extracted text) and cycles-since-new at the effective date.

Whether AD 01-19936 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.

Supersession

Supersedes AD 2000-13-05.

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 01-19936 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.