# SDR ASAA2023052843375

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 28, 2023
- Submitted: May 30, 2023
- Operation: Air carrier
- Aircraft: [N564AS](https://openairdocs.org/aircraft/N564AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35103
- Aircraft time: 60,839 hours, 18,072 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D71702001
- Condition: Discharged
- Location: Main Cabin
- 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/ASAA2023052843375

## Discrepancy

DURING T/C 78233001 FOUND MOST EMERGENCY INTERIOR LIGHTS INOP AFTER EMERGENCY LIGHTS BEING ON FOR 10 MINUTES. GROUNDED - YES. REMOVED AND REPLACED M1672 , M1673 , M1695 AND M1694 EMERGENCY EXIT LIGHT BATTERY PACK. REF B737-800 WDM 33-51-13 & 33-51-14.

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