# SDR ASAA2020021103141

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 10, 2020
- Submitted: February 12, 2020
- Operation: Air carrier
- Aircraft: [N519AS](https://openairdocs.org/aircraft/N519AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 36482
- Aircraft time: 41,893 hours, 12,404 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: ADD71701100
- Condition: Failed
- Location: Emergency Lights
- Stage of operation: TX
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2020021103141

## Discrepancy

REF T/C 78233001AFT LH EMERGENCY EXIT LIGHTS FAILED AFTER RECHARGE. GROUNDED - YES. REMOVED AND REPLACED AFT LH POWER SUPPLY BATTERY PACK IAW B737-800 AMM 33-51-06-960-805. GROUND VERIFICATION TEST IS GOOD.

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