# SDR CALA2023071402250

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 13, 2023
- Submitted: July 14, 2023
- Operation: Air carrier
- Aircraft: [N228UA](https://openairdocs.org/aircraft/N228UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30556
- Aircraft time: 81,826 hours, 9,709 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: ADD71701100
- Condition: Inoperative
- Location: R4 Door
- 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/CALA2023071402250

## Discrepancy

LOG ENTRY FOR SDR REPORTING. EMERGENCY LIGHT BATTERY PACK M33409 INOP AT R4 DOOR. SEE ST ENGINEERING N/R 102919. BATTERY PACK M33409 REPLACED AT R4 DOOR ON ST ENGINEERING N/R 102919.

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