# SDR UALA2009091102863

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 10, 2009
- Submitted: September 14, 2009
- Operation: Air carrier
- Aircraft: [N556UA](https://openairdocs.org/aircraft/N556UA), registered now
- Make and model: Boeing 757222
- Aircraft serial: 26650
- Aircraft time: 57,759 hours, 21,288 cycles
- Engine: Pwa PW2037
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Charger
- Part number: 20121
- Condition: Faulty
- Location: Battery Pack
- Component: Battery Pack
- Component part number: 20131A
- 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/UALA2009091102863

## Discrepancy

R1 EXTERNAL EMERGENCY LIGHT INOP.  REPLACED AND OPS CHECKED THE M730 EMERGENCY LIGHT BATTERY CHARGER AND BATTERY PACK AND INSPECTED.  OPS CHECKED GOOD.

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