AD NUMBER: 2007-02-06
MANUFACTURER: Pratt & Whitney
SUBJECT: Airworthiness Directive 2007-02-06
SUMMARY: The FAA is adopting a new airworthiness
directive (AD) for Pratt & Whitney PW2000 series turbofan
This AD requires a onetime focused visual and fluorescent
penetrant inspection (FPI) of 21 suspect PW2000 8th stage high
pressure compressor (HPC) drum rotor disk assemblies.
This AD results from a PW2037 8th stage HPC drum rotor disk
assembly failure event caused by tooling damage that occurred
during disk assembly manufacture.
We are issuing this AD to prevent 8th stage HPC drum rotor disk
assembly failure that could result in an uncontained engine failure
and damage to the airplane.