# SDR SWAA2022051206364

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 10, 2022
- Submitted: May 13, 2022
- Operation: Air carrier
- Aircraft: [N928WN](https://openairdocs.org/aircraft/N928WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36890
- Aircraft time: 45,601 hours, 27,673 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: M1674
- 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/SWAA2022051206364

## Discrepancy

EMERGENCY LIGHTS INOP FOR BATTERY CHARGER M1669 & M1674 / [01] REMOVED AND REPLACED POWER SUPPLY AND BATTERY PACK AT POSITION M1674 AND TEST OF POWER SUPPLY AND BATTERY PACK AT POSITION M1674 AND M1669 FOUND NORMAL REF AMM 33-51-06-960-805/806;[02] VERIFIED STEP 1;[03] VERIFIED

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