# SDR DALA2018061404007

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 12, 2018
- Submitted: June 14, 2018
- Operation: Air carrier
- Aircraft: N947DN
- Make and model: Doug MD-90-30
- Registry model: [Doug MD-90-30](https://openairdocs.org/model/mcdonnell-douglas-md-90-30) (OpenAirDocs)
- Aircraft serial: 53355
- Aircraft time: 48,481 hours, 39,843 cycles
- System (JASC): [3397 · Light System Wiring](https://openairdocs.org/jasc/3397)
- Part: Ground Wire
- Condition: Damaged
- Location: Emergency Lights
- 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/DALA2018061404007

## Discrepancy

CEILING EMERGENCY LIGHTS FAILED TO TEST.  TROUBLESHOT THE EMERGENCY LIGHTS AND FOUND A WIRE WITH HIGH RESISTANCE AND EMERGENCY LIGHT BATTERY PACK BE0143 FUSE FAILED.   REPAIRED THE GROUND WIRE L2534A20 AND R & R EMERGENCY LIGHT BATTERY PACK. OPS CHECKED GOOD.

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