# SDR ASAA2023012141765

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 21, 2023
- Submitted: February 4, 2023
- Operation: Air carrier
- Aircraft: [N483AS](https://openairdocs.org/aircraft/N483AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36350
- Aircraft time: 27,291 hours, 8,585 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D71702001
- Condition: Failed
- Location: Main Passenger C
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023012141765

## Discrepancy

LH ROW 7 EMERGENCY LIGHT POWER SUPPLY AT FLOOR LEVEL IS BAD. GROUNDED - YES. REPLACED POWER SUPPLY / BATTER L/H ROW 7 AT THE FLOOR OPS CHECK GOOD IAW B737-900 AMM 23-51-06-960-806 STEP E(4)(A) THRU (F).

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