# SDR SWAA2020031142344

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 10, 2020
- Submitted: March 11, 2020
- Operation: Air carrier
- Aircraft: [N441WN](https://openairdocs.org/aircraft/N441WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29837
- Aircraft time: 57,960 hours, 34,136 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 33500005
- Condition: Failed
- Location: Cabin
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2020031142344

## Discrepancy

PASSENGER CABIN, FOUR EMERGENCY LIGHTING BATTERY PACKS FAILED CAPACITY TEST.         R & R PASSENGER CABIN, FOUR EMERGENCY LIGHTING BATTERY PACKS (M01670, M01672, M01673 & M01675), PER AMM 33-51-06 & DWG# 33500005.

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