What was found
NR 3 ENGINE BANGED AND SPOOLED DOWN FL330. *S/D* HIGH PRESSURE COMPRESSOR FAILURE. SUSPECT 5TH STAGE BLADE FAILED. ENGINE SENT TO PRATT WHITNEY FOR WARRANTY REPAIR AND FAILURE ANALYSIS.
- Difficulty date
- July 20, 1998
- Submitted
- March 26, 2000
- Operation
- Air carrier
- Aircraft
- N104UA
- Make and model
- Boeing 747422
- Aircraft serial
- 26902
- Engine
- Pwa PW4056
- System (JASC)
- 7230 · Turbine Engine Compressor Section
- Part
- Compressor
- Condition
- Failed
- Location
- Nr 3 Engine
- Stage of operation
- CR
- Nature of condition
- Y
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.