# SDR CALA2009122800768

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 28, 2009
- Submitted: December 28, 2009
- Operation: Air carrier
- Aircraft: [N78003](https://openairdocs.org/aircraft/N78003), registered now
- Make and model: Boeing 777224
- Aircraft serial: 27579
- Aircraft time: 54,194 hours, 5,853 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: D71701100
- Condition: Failed
- Location: Cabin
- 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/CALA2009122800768

## Discrepancy

EMERGENCY LIGHT BATTERY PACKS ZONE AT 4L AND 4R FAILED CAPACITY CHECK.  REMOVED AND REPLACED BATTERY PACKS 1EA FOR M33407, 1EA FOR M33409, OPS NORMAL AMM 33-51-960-802.

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