# SDR UALA2009031000710

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 4, 2009
- Submitted: March 10, 2009
- Operation: Air carrier
- Aircraft: N128UA
- Make and model: Boeing 747422
- Aircraft serial: 30023
- Aircraft time: 35,914 hours, 4,329 cycles
- Engine: Pwa PW4056
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: 582233
- 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/UALA2009031000710

## Discrepancy

UPPER DECK STAIRWAY AREA EMERGENCY LIGHTS QUICK DISCHARGED, EQUIP M5934, LOC STA 910 WL310 BL 93.  REPLACED WITH SERVICEABLE BATTERY PACK EQUIP M5934 AND OP CHECKED NORMAL.

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