# SDR UALA2009020500399

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 5, 2009
- Submitted: February 6, 2009
- Operation: Air carrier
- Aircraft: [N643UA](https://openairdocs.org/aircraft/N643UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 25093
- Aircraft time: 77,208 hours, 12,420 cycles
- Engine: Pwa PW4060
- System (JASC): [4920 · APU Core Engine](https://openairdocs.org/jasc/4920)
- Part: Apu
- Part number: 3800298817
- Condition: Making Metal
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2009020500399

## Discrepancy

APU GEARBOX CHIP DETECTOR HAS AT LEAST 3 PARTICLES ABOVE .050 IN ADDITION TO SEVERAL SMALLER SHINY CHIPS ACCUMULATED.  REPLACED APU.  APU OPS CHECK AND LEAK CHECK GOOD.

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