SDR UALA2012090404929

Service difficulty report · Drum · Boeing 767322

Difficulty date: August 31, 2012
Submitted: September 28, 2012
Operation: Air carrier
Aircraft: N653UA
Make and model: Boeing 767322
Aircraft serial: 25391
Aircraft time: 85,579 hours, 13,720 cycles
Engine: Pwa PW4060
Engine time: 84,008 hours, 11,006 cycles
System (JASC): 7230 · Turbine Engine Compressor Section
Part: Drum
Condition: Cracked
Location: Nr 2 Compressor
Part time: 84,008 hours, 11,006 cycles
Stage of operation: IN
How discovered: 9
Nature of condition: O
Precautionary procedure: K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

NR 2 ENGINE HPC DRUM, 7TH STAGE HAS TWO CRACK INDICATIONS REQUIRING VERIFICATION. REMOVED NR 2 ENGINE, ESN 717691 AND REPLACED WITH SERVICEABLE ENGINE, ESN 724693 PER MM 71-00-02-401 TOD ON NON ROUTINE 38555 AND INSP QC 002 FOR RII OF ENGINE INSTALLATION.