# SDR UALA2011091204929

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 12, 2011
- Submitted: September 14, 2011
- Operation: Air carrier
- Aircraft: N128UA
- Make and model: Boeing 747422
- Aircraft serial: 30023
- Aircraft time: 46,131 hours, 5,494 cycles
- Engine: Pwa PW4056
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: S1356B37
- Condition: Discharged
- Location: Cabin
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2011091204929

## Discrepancy

EMERGENCY LIGHT SIDEWALL DOOR 1R, 2 LIGHT INOP.  REPAIRED BROKEN WIRE AND REPLACED BATTERY PACK AND CHARGER.

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