# SDR CALA2021031000280

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 8, 2021
- Submitted: March 10, 2021
- Operation: Air carrier
- Aircraft: [N76021](https://openairdocs.org/aircraft/N76021), registered now
- Make and model: Boeing 777224
- Aircraft serial: 39776
- Aircraft time: 49,099 hours, 4,485 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: D71701100
- Part serial: 73970
- Condition: Inoperative
- Location: Emergency Lights
- 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/CALA2021031000280

## Discrepancy

EMERGENCY BATTERY PACK AT L2 DOOR AFT POSITION INOP. REPLACED BATTERY PACK AS PER AMM 33-51-06-960-801. OPS CHECKS GOOD.

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