# SDR AALA20170324001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 23, 2017
- Submitted: March 24, 2017
- Operation: Air carrier
- Aircraft: [N891NN](https://openairdocs.org/aircraft/N891NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 33315
- Aircraft time: 15,759 hours, 6,286 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: D71702001
- Part serial: 7110
- Condition: No Test
- Location: Emergency Light
- 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/AALA20170324001

## Discrepancy

DURING AN EMERGENCY LIGHTING FUNCTIONAL CHECK, R4 DOOR AND ROWS 20/30 FAILED TO ILLUMINATE. REPLACED BATTERY PACK AT BS 952. OPS CHECK GOOD. THE AIRCRAFT WAS NOT GROUNDED.

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