# SDR SWAA2026021068150

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 6, 2026
- Submitted: February 10, 2026
- Operation: Air carrier
- Aircraft: [N438WN](https://openairdocs.org/aircraft/N438WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29833
- Aircraft time: 74,459 hours, 44,453 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: No Test
- Location: Zone 200
- 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/SWAA2026021068150

## Discrepancy

LEFT FWD EMERGENCY LIGHTING BATTERY PACK FAILED A CAPACITY CHECK.   REMOVED & REPLACED BATTERY PACK IAW MM 33-51-06.

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