# SDR ASAA2022071039025

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 10, 2022
- Submitted: July 12, 2022
- Operation: Air carrier
- Aircraft: [N519AS](https://openairdocs.org/aircraft/N519AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 36482
- Aircraft time: 48,814 hours, 14,342 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: ADD71701100
- Condition: Failed
- 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/ASAA2022071039025

## Discrepancy

ON WALKAROUND FOR EMERGENCY LIGHT CHECK, FOUND LIGHTS OUT AT SEATS 20C AND 23C, AND L/H AFT OVERWING EMERGENCY EXIT LIGHTS. GROUNDED - YES. REMOVED AND REPLACED BATTERY PACK OF M1670 REF B737-800 AMM 33-51-06-960-805. EMERGENCY LT OPS AT 20C, 23C, AND L/H AFT OVERWING EXIT NOW CHECK GOOD. ALL EMERGENCY LT'S OP CHECK GOOD.

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