# SDR CALA2023013000247

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 28, 2023
- Submitted: January 30, 2023
- Operation: Air carrier
- Aircraft: [N2333U](https://openairdocs.org/aircraft/N2333U), registered now
- Make and model: Boeing 777-300ER
- Registry model: [Boeing 777-300ER](https://openairdocs.org/model/boeing-777-300er) (OpenAirDocs)
- Aircraft serial: 62644
- Aircraft time: 24,486 hours, 2,725 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: D71701100
- Part serial: 425822
- Condition: Weak
- Location: Emergency Lights
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2023013000247

## Discrepancy

SUPPORT TASK DR L4 M33405 POWER SUPPLY FOUND BATTERY WEAK.  DR L4 M33405 EMER LIGHT BATTERY REPLACED AND TESTED NORMAL AS PER AMM33-51-06.

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