# SDR UPS02437552

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 31, 2002
- Submitted: February 1, 2002
- Operation: Air carrier
- Aircraft: [N675UP](https://openairdocs.org/aircraft/N675UP), registered now
- Make and model: Boeing 747123
- Aircraft serial: 20390
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Condition: Discharged
- Location: Cabin
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS02437552

## Discrepancy

INSPECTION TYPE:PFLT EMERGENCY EXIT SIGN OVER CREW SERVICE DOOR INOP.  REMOVED AND REPLACED POWER SUPPLY MODULE M312 IAW B747 MM 33-51-04, OPS CHECK GOOD.

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