# SDR CALA2023041901176

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 19, 2023
- Submitted: April 19, 2023
- Operation: Air carrier
- Aircraft: [N2639U](https://openairdocs.org/aircraft/N2639U), registered now
- Make and model: Boeing 777-300ER
- Registry model: [Boeing 777-300ER](https://openairdocs.org/model/boeing-777-300er) (OpenAirDocs)
- Aircraft serial: 62650
- Aircraft time: 24,537 hours, 2,769 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: NA
- Condition: Failed
- Location: M33401  At Dr R4
- 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/CALA2023041901176

## Discrepancy

SUPPORT TASK - DR R4 EMER LIGHT BATTERY M33401 TEST FAIL. TRANSFER REFER NON-ROUTINE WO.1725504 AND ORIGINATOR V898181. DR R4 EMER LIGHT BATTERY M33401 REPLACED AND TESTED NORMAL AS PER AMM 33-51-06. WORK ACCOMPLISHED BY MECH V898181 AND INSPECTED BY V896958 IDT OKAY AND INSPECTED BY HX107723 ADD EMP:V907050

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