# SDR CALA2023012700232

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 27, 2023
- Submitted: January 27, 2023
- Operation: Air carrier
- Aircraft: [N643UA](https://openairdocs.org/aircraft/N643UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 25093
- Aircraft time: 125,478 hours, 19,542 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Condition: Inoperative
- 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/CALA2023012700232

## Discrepancy

EMER LT PWR SUPPLY M737 INOP TRANSFER REF. NON-ROUTINE WO.1376540.  EMER LT PWER SUPPLY M737 REPLACED AND TESTED NORMAL PER AMM 33-51-07

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