# SDR SWAA2022040490866

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 30, 2022
- Submitted: April 4, 2022
- Operation: Air carrier
- Aircraft: [N958WN](https://openairdocs.org/aircraft/N958WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36673
- Aircraft time: 36,108 hours, 21,757 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: M01669
- Condition: Failed
- Location: Cabin
- 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/SWAA2022040490866

## Discrepancy

FOUND TWO EMERGENCY LIGHTING BATTERY PACKS FAILED CAPACITY TEST. / [01] REMOVED & REPLACED TWO EMERGENCY LIGHTING BATTERY PACKS (M01668 & M01669) PER AMM 33-51-06 AND DWG # 33500005.

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