# SDR SWAA2016060152174

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 26, 2016
- Submitted: June 1, 2016
- Operation: Air carrier
- Aircraft: [N274WN](https://openairdocs.org/aircraft/N274WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32529
- Aircraft time: 32,360 hours, 18,857 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: P4010021
- 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/SWAA2016060152174

## Discrepancy

LEFT AFT EMER LIGHT BATTERY PACK FAILED CAPACITY CHECK.  R & R BATTERY IAW MM.

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