# SDR CALA2021030100244

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 28, 2021
- Submitted: March 1, 2021
- Operation: Air carrier
- Aircraft: [N78002](https://openairdocs.org/aircraft/N78002), registered now
- Make and model: Boeing 777224
- Aircraft serial: 27578
- Aircraft time: 104,022 hours, 10,587 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: D71701100
- Part serial: 402470
- Condition: Inoperative
- Location: Emergency Lights
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2021030100244

## Discrepancy

EMERGENCY LIGHT BATTERY PACK INOP AT R4 AFT POSITION. REPLACED BATTERY PCK AS PER AMM TASK 33-51-06-960-802. OPS CHECKS GOOD.

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