# SDR SWAA2023072780807

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 21, 2023
- Submitted: July 27, 2023
- Operation: Air carrier
- Aircraft: [N441WN](https://openairdocs.org/aircraft/N441WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29837
- Aircraft time: 66,664 hours, 39,529 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Fuse
- Part number: UNKNOWN
- Condition: Inoperative
- Location: Zn 200 Fus Top
- 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/SWAA2023072780807

## Discrepancy

FOUND LEFT OVERWING DOOR EMERGENCY EXIT SIGNS INOP<[01] REMOVED AND REPLACED LEFT OVERWING DOOR EMERGENCY EXIT SIGN POWER SUPPLY M1668 FUSE PER B737 AMM TASK 33-51-06-960-804; OPS CHECKED NORMAL.;[02] VERIFIED STEP 1

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