# SDR SWAA2022072531016

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 19, 2022
- Submitted: July 25, 2022
- Operation: Air carrier
- Aircraft: [N443WN](https://openairdocs.org/aircraft/N443WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29838
- Aircraft time: 63,879 hours, 37,626 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: M1674
- Condition: Inoperative
- Location: L1 Door
- 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/SWAA2022072531016

## Discrepancy

MISC L1 DOOR AREA EMERGENCY LIGHTS ARE INOP / [01] DISPLACE FWD ENTRY LIGHT ASSY IAW AMM 33-51-06-960-805 STEP 4E(3)(A);[02] REMOVED AND REPLACED AND OPS CHECKED L1 DOOR AREA EMERGENCY LIGHTS POWER SUPPLY AND BATTERY AT M1674 IAW AMM'S 33-51-06-960-805 AND 33-51-06-960-806 AND WDM 33-51-12 PAGE 2 SHEET 1 OPS CHECK GOOD;[03] VERIFIED STEP 2<BR>OK TO CLOSE FWD ENTRY LIGHT;[04] CLOSED FWD ENTRY LIGHT ASSY IAW AMM 33-51-06-960-805 STEP 4F(1);[05] VERIFIED STEP 4<BR>AUDIT CW

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.