# SDR ASAA2025092362424

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 23, 2025
- Submitted: November 20, 2025
- Operation: Air carrier
- Aircraft: [N556AS](https://openairdocs.org/aircraft/N556AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35175
- Aircraft time: 62,620 hours, 22,524 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D71702001
- Condition: Inoperative
- Location: Cabin
- 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/ASAA2025092362424

## Discrepancy

CUSTOMER WALK ITEM: LH AFT OVERWING HATCH EXTERNAL EMERGENCY EXIT LIGHT INOP. GROUNDED - YES. REMOVED AND REPLACED EMERGENCY LIGHT POWER SUPPLY MI675 AT L/H FWD ENTRY DOOR, OPS CHECK COMPLETED. OPS CHECK GOOD I.A.W. B737-800 AMM 31-51-06-960-806.WO: 2065538REFERENCE_TASK_CARD: 78005002.

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