# SDR AALA20150821006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 20, 2015
- Submitted: August 21, 2015
- Operation: Air carrier
- Aircraft: [N850NN](https://openairdocs.org/aircraft/N850NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 40580
- Aircraft time: 16,272 hours, 6,331 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- 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/AALA20150821006

## Discrepancy

WHILE PERFORMING CARD 2908, BATTERY PACKS M1671 & M1673 FAILED CAPACITY CHECK.  R & R BATTERY PACK M1671. SEE ALSO AALA20150821002.

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