# SDR CALA0500227

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 19, 2005
- Submitted: July 20, 2005
- Operation: Air carrier
- Aircraft: [N23721](https://openairdocs.org/aircraft/N23721), registered now
- Make and model: Boeing 737724
- Aircraft serial: 28940
- Aircraft time: 22,049 hours, 7,047 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: D71702001
- Condition: Inoperative
- 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/CALA0500227

## Discrepancy

POWER DROPPED OFF LINE AND SEVERAL AISLE PATH EMERGENCY LIGHTS WOULD NOT ILLUMINATE.  A NEW M1676 BATTERY PACK WAS INSTALLED AND OPERATIONAL CHECKS WERE GOOD.

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