# SDR ASAA2022082140022

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 21, 2022
- Submitted: September 23, 2022
- Operation: Air carrier
- Aircraft: [N563AS](https://openairdocs.org/aircraft/N563AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35180
- Aircraft time: 57,406 hours, 16,898 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D71702001
- Condition: Inoperative
- Location: Main Passenger C
- 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/ASAA2022082140022

## Discrepancy

EMERGENCY LIGHT SYSTEM BATTERY PACK FAILED CAPACITY CHECK FOR AFT GALLEY AND AFT CABIN LH BIN LIGHTS. GROUNDED - YES. REMOVED AND REPLACED 4 EA POWER SUPPLY/ BATTERY PACKS M1672, M1673, M1676, AND M1694 IAW B737-800 AMM 33-51-06-960-806 EMERGENCY LIGHTS IN AFT GALLEY AND AFT CABIN TEST GOOD.

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