# SDR UALA2009102803373

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 28, 2009
- Submitted: October 28, 2009
- Operation: Air carrier
- Aircraft: N180UA
- Make and model: Boeing 747422
- Aircraft serial: 25224
- Aircraft time: 78,639 hours, 9,487 cycles
- Engine: Pwa PW4056
- System (JASC): [2432 · Battery/Charger System](https://openairdocs.org/jasc/2432)
- Part: Charger
- Part number: 425402
- Part serial: 427
- Condition: Faulty
- Location: Apu
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2009102803373

## Discrepancy

REPLACE APU BATTERY FOR TROUBLESHOOTING.  REPLACED APU BATTERY, NO HELP.  SUSPECT APU BATTERY CHARGER.  REPLACED APU BATTERY CHARGER PRECAUTIONARY.  BOTH APU BATTERY AND CHARGER CHECK GOOD.

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