Airworthiness Directive · Amendment 39-13351 · Rolls-Royce plc RB211-524 Series Turbofan Engines
Rolls-Royce plc RB211-524 Series Turbofan Engines
This AD applies to Rolls-Royce plc (RR) RB211-524G2-19,- 524G2-T-19, -524G3-19, -524G3-T-19, -524H2-19, -524H2-T-19, -524H- 36, and "524-H-T-36 turbofan engines with low pressure (LP) compressor fan blades part numbers (PNs) and serial numbers (SNs) as listed in Table 1 of RR Mandatory Service Bulletin (MSB) No. RB.211- 72-D184, Revision 3, dated December 20, 2002, installed. These engines are installed on, but not limited to, Boeing 747 and 767 series airplanes.
The FAA is adopting a new airworthiness directive (AD) for Rolls-Royce plc (RR) RB211-524 series turbofan engines with certain part number (PN) and serial number (SN) low pressure (LP) compressor fan blades installed. This AD requires inspection of certain LP compressor fan blade roots and replacement or repair of blades if damage is not within acceptable limits. This AD is prompted by the discovery of damaged LP compressor fan blade roots resulting from entrapment of ceramic polishing media between the blade roots and the masking boot during blade root repair. We are issuing this AD to prevent possible uncontained multiple LP compressor fan blade release, and damage to the airplane.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
