# SDR CALA2023053101710

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 31, 2023
- Submitted: May 31, 2023
- Operation: Air carrier
- Aircraft: [N2341U](https://openairdocs.org/aircraft/N2341U), registered now
- Make and model: Boeing 777-300ER
- Registry model: [Boeing 777-300ER](https://openairdocs.org/model/boeing-777-300er) (OpenAirDocs)
- Aircraft serial: 63721
- Aircraft time: 25,349 hours, 2,774 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: NA
- Condition: Failed
- Location: Dr L1 M33093
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2023053101710

## Discrepancy

B777-33-3-7019 DR L1 M33093 EMER LIGHT BATTERY TEST FAIL. TRANSFER REFER NON-ROUTINE WO.1821528 AND ORIGINATOR V898181. DR L1 M33093 EMER LT BATTERY REPLACED AND TESTED NORMAL AS PER AMM 33-51-06. WORK ACCOMPLISHED BY MECH V898181 AND INSPECTED BY V896958

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