# SDR UIEA2013122200613

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 22, 2013
- Submitted: December 23, 2013
- Operation: Air carrier
- Aircraft: [N263SG](https://openairdocs.org/aircraft/N263SG), registered now
- Make and model: Boeing 747481
- Aircraft serial: 29263
- Aircraft time: 43,435 hours, 5,611 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: 900835AB
- Part serial: 105170
- Condition: Failed
- Location: Cabin
- Part time: 841 hours, 65 cycles
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2013122200613

## Discrepancy

DURING ROUTINE MAINTENANCE THE LT UPPER DECK DOOR ESCAPE LIGHT BATTERY FAILED OPERATIONAL CHECK.  REPLACED LT UPPER DECK ESCAPE LIGHT BATTERY PACK IAW AMM 33-51-04.  OPERATIONS CHECKED GOOD.

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