# SDR SWAA2020080503528

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 26, 2020
- Submitted: August 5, 2020
- Operation: Air carrier
- Aircraft: N720WN
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 27854
- Aircraft time: 74,929 hours, 44,674 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Inoperative
- Location: Emergency Lights
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2020080503528

## Discrepancy

EMERGENCY LIGHTS POWERED BY BATTERY PACK M1670 ARE INOPERATIVE. / REPLACED BATTERY PACK M1670 AND PERFORMED GOOD FUNCTIONAL TEST AS PER AMM 33-51-06-960-805.

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