# SDR 2007UALA00331

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 5, 2007
- Submitted: February 14, 2007
- Operation: Air carrier
- Aircraft: [N784UA](https://openairdocs.org/aircraft/N784UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26951
- Aircraft time: 43,980 hours, 6,620 cycles
- Engine: Pwa PW4090
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Inoperative
- Location: Emergency Light
- 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/2007UALA00331

## Discrepancy

DOOR 1L EPAS BATTERY PACK TEST LIGHT IS INOPERATIVE.   REPLACED BOTH EPAS 9 VOLT BACKUP BATTERIES AT DOOR 1L AFTER REPL ACEMENT OF DOOR 1L EPAS BATTERY PACK,  EPAS TESTED OK.  A/C RETURNED TO SERVICE.

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