# SDR AALA20120113DFW05

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 11, 2012
- Submitted: January 13, 2012
- Operation: Air carrier
- Aircraft: [N778AN](https://openairdocs.org/aircraft/N778AN), registered now
- Make and model: Boeing 777223
- Aircraft serial: 29587
- Aircraft time: 52,754 hours, 6,593 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- 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/AALA20120113DFW05

## Discrepancy

COCKPIT ESCAPE PATH LIGHT AND OVERHEAD LIGHT BY LEFT NUMBER 1 CLOSET INOPERATIVE.  REPLACED M33424 BATTERY PACK.  OPS CHECK NORMAL.

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