# SDR DALA201912237496

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 20, 2019
- Submitted: December 23, 2019
- Operation: Air carrier
- Aircraft: [N660DL](https://openairdocs.org/aircraft/N660DL), registered now
- Make and model: Boeing 757232
- Aircraft serial: 24422
- Aircraft time: 90,167 hours, 41,077 cycles
- System (JASC): [3397 · Light System Wiring](https://openairdocs.org/jasc/3397)
- Part: Circuit Card
- Condition: Malfunctioned
- Location: Emergency Lights
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA201912237496

## Discrepancy

EMERGENCY CABIN LIGHT "UNARMED" LIGHT DOES NOT COME ON WITH EMERGENCY LIGHTS SELECTED OFF.   R&R UNARMED PB,S CIRCUIT PIECE P/N 434-093-001.

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