# SDR 97UAL900297

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 15, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N650UA](https://openairdocs.org/aircraft/N650UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 25287
- Engine: Pwa PW4060
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Scavenge Pump
- Part number: 38801605
- Condition: Failed
- Location: Apu
- Part time: 1,843 hours
- Stage of operation: TX
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97UAL900297

## Discrepancy

ON TAXI TO THE GATE, EXCESSIVE BLUE COLORED SMOKE STARTED POURING OUT OF APU.  *S/D*  THE TURBINE SCAVENGE PUMP FAILED AND CAUSED THE SMOKE OUT OF THE APU TAILPIPE DUE TO OIL NOT BEING SCAVENGED BACK TO THE GEARBOX.  REPLACED THE SCAVENGE PUMP.

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