# SDR SWAA2025030602368

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 5, 2025
- Submitted: March 6, 2025
- Operation: Air carrier
- Aircraft: [N7748A](https://openairdocs.org/aircraft/N7748A), registered now
- Make and model: Boeing 737-7BD
- Registry model: [Boeing 737-7BD](https://openairdocs.org/model/boeing-737-7bd) (OpenAirDocs)
- Aircraft serial: 36399
- Aircraft time: 55,569 hours, 28,876 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Condition: Inoperative
- Location: Zone 200
- 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/SWAA2025030602368

## Discrepancy

R/H OVERWING INTERIOR EXIT LIGHT LOWER AND UPPER INOP<[01] REPLACED FUSE 1 TO POWER SUPPLY M1669 PER AMM 33-51-06-960-804 AND WM 33-51-21. GOOD OPERATIONAL TEST.;[02] PERFORMED FIM TASK 33-50 TASK 801 STEP J; 3. FOUND BAD FUSE. REPLACED FUSE 1 TO POWER SUPPLY M1669 PER AMM 33-51-06-960-804 AND WM 33-51-21. GOOD OPERATIONAL TEST.<BR><BR>MULTIMETER<BR>ID: ATS1508<BR>DUE: 09/2025;[03] VERIFIED CORRECTIVE ACTION

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