Airworthiness Directive 2002-02-12
recurringAirworthiness Directives; Rolls-Royce plc RB211-524G and -524H Series Turbofan Engines
What this AD requires
This amendment supersedes an existing airworthiness directive (AD) that is applicable to Rolls-Royce plc (RR) RB211-524G and -524H series turbofan engines. That AD currently requires initial and repetitive ultrasonic inspections for cracks in fan blade dovetail roots, and, if necessary, replacement with serviceable parts. That action also provides the options of installing improved design fan blades or reworking current fan blades to the improved configuration as terminating action for the inspections. This amendment requires initial inspection at lower thresholds, using either the blade root probe method or the surface wave probe method. This amendment also removes the option of reworking blades as terminating action for the inspections. Lastly, this amendment adds the model RB211-524H-T-36 engine to the applicability of this AD. This amendment is prompted by two additional reports of fan blade cracks found during inspections performed in accordance with the current AD. The actions specified in this AD are intended to detect cracked fan blades, which could result in an uncontained engine failure and damage to the airplane.
Which aircraft AD 2002-02-12 applies to
Applies to RB.211 engines with the listed fan-blade part numbers installed; requires ultrasonic (root-probe or wave-probe method) inspection of the dovetail slots for cracks, per RR SB RB.211-72-C818 Rev.4/Rev.5, on initial/repetitive schedules keyed to cycles-since-new and cycles-since-last-inspection that vary by blade P/N group.
Whether AD 2002-02-12 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.