Airworthiness Directive 2001-23-02
one-timeAirworthiness Directives; Rolls-Royce plc RB211 Turbofan Engines
What this AD requires
This amendment adopts a new airworthiness directive (AD), that is applicable to Rolls-Royce plc model RB211-535E4-37, RB211-535E4-B- 37, RB211-535C-37, RB211-535E4-B-75 and RB211-22B-02 turbofan engines. This amendment requires inspection of certain high pressure (HP) turbine disks, manufactured between 1989 and 1999, for cracks in the rim cooling air holes, and, if necessary, replacement with serviceable parts. This amendment is prompted by reports of cracks in two high life Trent 800 disk rim cooling air holes produced at the same manufacturing facility using the same tooling as the RB211 turbofan engine HP turbine disks. The actions specified by this AD are intended to prevent possible disk failure, which could result in an uncontained engine failure and damage to the aircraft.
Which aircraft AD 2001-23-02 applies to
One-time inspection of HP turbine disks for rear-face cooling-air-hole cracks per RR SB RB.211-72-C817 (models RB211-535E4-37/-535E4-B-37/-535C-37/-535E4-B-75) or RB.211-72-C877 (model RB211-22B-02); inspection timing depends on accumulated disk cycles-in-service at the effective date.
Whether AD 2001-23-02 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:
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.