# SDR SWAA2025051469795

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 12, 2025
- Submitted: May 14, 2025
- Operation: Air carrier
- Aircraft: [N957WN](https://openairdocs.org/aircraft/N957WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 41528
- Aircraft time: 45,024 hours, 27,712 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: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2025051469795

## Discrepancy

CSTOMER REQUEST R.L. PASSENGER CABIN; STOWBIN EGRESS LIGHT 3CBA DOES NOT STAY ON .<[01] OPENED AIRGRILL AT M1668 POWER SUPPLY IAW AMM 33-51-06-960-806 STEP 5.A-E(3).<BR><BR>REMOVED AND REPLACED EMERGENCY POWER SUPPLY M1668 IAW AMM 33-5106-960-806 STEP 5.E(4).<BR><BR>ACCOMPLISHED INSTALLATION TEST FOR EMERGENCY POWER SUPPLY M1668 IAW AMM 33-5106-960-806 STEP 5.E(5). TEST GOOD.<BR><BR>CLOSED AIRGRILL AT M1668 POWER SUPPLY IAW AMM 33-51-06-960-806 STEP 5.F.;[02] C/W<BR>AUDIT C/W;[03] PART ROBBED FROM A/C 8938 ON TTG8Q010CKBS

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