# SDR ASAA2019122081647

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 18, 2019
- Submitted: December 20, 2019
- Operation: Air carrier
- Aircraft: [N557AS](https://openairdocs.org/aircraft/N557AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35176
- Aircraft time: 51,748 hours, 15,107 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: D71701100
- Condition: No Test
- Location: Emergency Lights
- 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/ASAA2019122081647

## Discrepancy

M1694 AND M1670 EMERGENCY BATTERY PACKS FAILED CHARGING CAPACITY GROUNDED - YES. REMOVED, REPLACED AND PERFORMED SUCCESSFUL SYSTEM OP CHECK ON EMERGENCY BATTERY PACKS M1694 AND M1670 IAW B737NG AMM 33-51-06-960-805.

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