# SDR ASAA2025100561350

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 5, 2025
- Submitted: October 7, 2025
- Operation: Air carrier
- Aircraft: [N549AS](https://openairdocs.org/aircraft/N549AS), registered now
- Make and model: Boeing 737-8FH
- Registry model: [Boeing 737-8FH](https://openairdocs.org/model/boeing-737-8fh) (OpenAirDocs)
- Aircraft serial: 30824
- Aircraft time: 68,233 hours, 24,342 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D71702001
- Condition: Inoperative
- 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/ASAA2025100561350

## Discrepancy

DURING T/C 78233008, FOUND RH AFT OVERWING EXIT EMERGENCY LT INOP. GROUNDED - YES. VERIFIED DISCREPANCY AND FOUND POWER SUPPLY M1671 TO BE INOP REF WDM 33-51-14. REMOVED & REPLACED POWER SUPPLY AND BATTERY PACK REF AMM33-51-06-960-806. OPS CHECK NORMAL.

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