# SDR SWAA2023011992361

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 18, 2023
- Submitted: January 19, 2023
- Operation: Air carrier
- Aircraft: [N778SW](https://openairdocs.org/aircraft/N778SW), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 27883
- Aircraft time: 71,958 hours, 42,703 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- 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/SWAA2023011992361

## Discrepancy

EMERGENCY LIGHT BATTERY PACKS, M1672, M1669, M1675, M1671, M1674 FAILED A CAPACITY TEST.  THE BATTERY PACKS WERE REMOVED AND REPLACED IAW AMM 33-51-06.

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