# SDR SWAA2023081889859

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 16, 2023
- Submitted: August 18, 2023
- Operation: Air carrier
- Aircraft: [N945WN](https://openairdocs.org/aircraft/N945WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36660
- Aircraft time: 43,594 hours, 26,670 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Light
- 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/SWAA2023081889859

## Discrepancy

ROW 3DEF AND ROW 6DEF LOWER BIN EMERGENCY LIGHT INOP.   OK TO CONTINUE PER MEL 33-15-02 SP1 MDDR 150724;[02] RELAMPED ASSEMBLIES NO FIX. CHECKED FOR VOLTAGE AT LIGHT ASSEMBLIES AND HAD 0 VOLTS. SLAVED IN BATTERY PACK AND POWER SUPPLY. NO FIX. NEEDS FURTHER TROUBLESHOOTING.;[03] REMOVED AND REPLACED EMERGENCY EXIT LIGHT ASSEMBLY AT ROW 3DEF PER AMM 33-51-03 ALSO REPLACED 1EA FUSE IN M1674 POWER SUPPLY PER AMM 33-51-06. OPS CHECKS GOOD.

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