# SDR UALA2009031000083

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 7, 2009
- Submitted: January 8, 2010
- Operation: Air carrier
- Aircraft: [N798UA](https://openairdocs.org/aircraft/N798UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26928
- Aircraft time: 47,545 hours, 7,068 cycles
- Engine: Pwa PW40903
- System (JASC): [4920 · APU Core Engine](https://openairdocs.org/jasc/4920)
- Part: Gearbox
- Condition: Making Metal
- Location: Apu
- Component: Apu
- Component part number: 38005501
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2009031000083

## Discrepancy

APU HAD A NO START.  FOUND LOTS OF METAL ON GEAR BOX DRAIN CHIP DETECTOR. REPLACED APU.  OPS CHECK NORMAL, NO LEAKS NOTED, NO MSG DISPLAYED.

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