# SDR ASAA2019082213444

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 21, 2019
- Submitted: August 22, 2019
- Operation: Air carrier
- Aircraft: [N565AS](https://openairdocs.org/aircraft/N565AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35181
- Aircraft time: 48,887 hours, 14,663 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: D71702001
- Condition: Failed
- Location: Emergency Light
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2019082213444

## Discrepancy

REF T/C 78233001 EMERGENCY LIGHT BATTERY PACKS M1671 AND M1673 FAIL CAPACITY CHECK. GROUNDED - YES. REPLACED EMERGENCY LIGHT BATTERY PACK M1671 AND M1673 REF B737-800 AMM 33-51-06-960-805. OPS CHECK GOOD.

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