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Tue, Jul 17, 2007

AD: Rolls-Royce

AD NUMBER: 2007-14-07
MANUFACTURER: Rolls Royce
SUBJECT: Airworthiness Directive 2007-14-07
SUMMARY:
The FAA is adopting a new airworthiness directive (AD) for certain Rolls-Royce plc (RR) RB211-524 and -535 series turbofan engines.

This AD requires initial and repetitive fluorescent penetrant inspections (FPI) of the high pressure (HP) compressor stage 1 and 2 rotor discs for cracks.

This AD results from reports of low-cycle-fatigue cracks found at overhaul in the interface weld between the HP compressor stage 1 and 2 rotor disc.

We are issuing this AD to prevent uncontained engine failure and damage to the airplane.

FMI: www.faa.gov/regulations_policies/airworthiness_directives/

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