# SDR ASAA2023072544229

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 25, 2023
- Submitted: July 26, 2023
- Operation: Air carrier
- Aircraft: [N596AS](https://openairdocs.org/aircraft/N596AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35688
- Aircraft time: 54,332 hours, 16,245 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D71702001
- Condition: Inoperative
- Location: Emergency Lights
- 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/ASAA2023072544229

## Discrepancy

POWER SUPPLY M1671 FOR RH MID CABIN EMERGENCY LIGHTS FOUND TO FAIL TO CHARGE BATTERY. FAULT IN POWER SUPPLY FOUND WHILE WORKING TC 78233001. GROUNDED - YES. POWER SUPPLY M1671 REMOVED AND REPLACED PER AMM 33-51-06-960-806. ONE MIG-51A INSTALLED AND REMOVED. OPS CHECK NORMAL.

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