# SDR SWAA2026040886209

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 4, 2026
- Submitted: April 8, 2026
- Operation: Air carrier
- Aircraft: [N8608N](https://openairdocs.org/aircraft/N8608N), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 36638
- Aircraft time: 43,961 hours, 21,198 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Lamp
- 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/SWAA2026040886209

## Discrepancy

FORWARD SERVICE DOOR LIGHT ASSEMBLY L1186 DOES NOT ILLUMINATE DURING EMERGENCY LIGHTING TEST.   TROUBLESHOT TO FAULTY FUSE IN M2816 POWER SUPPLY.   REPLACED FUSE CONNECTED TO D14812; PIN 15 PER WDM 33-51-21, WDM 33-51-11, AND AMM 33-51-06-960-804.  REPLACED THE LAMPS L1186 AND TESTED IAW AMM 33-51-01-960-801, TEST NOW PASSES.

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