# SDR CALA2025050604492

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 5, 2025
- Submitted: May 6, 2025
- Operation: Air carrier
- Aircraft: [N75410](https://openairdocs.org/aircraft/N75410), registered now
- Make and model: Boeing 737924
- Aircraft serial: 30127
- Aircraft time: 65,404 hours, 27,100 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D71702030
- Condition: Faulted
- Location: Zone 200
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2025050604492

## Discrepancy

EMERGENCY LIGHTING SYSTEM OPERATIONAL CHECK {B737-33-3-0235} - R/H AFT OVERWING ILLUM LIGHT INOP. RELAMPED R/H AFT OVERWING EXIT LIGHT REF AMM 33-51-04-960-801. NO HELP. REPLACED POWER SUPPLY M1671 REF AMM 33-51-06-960-806. OPS CHECK GOOD.

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