# SDR 96ZZZX5658

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 28, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N747WS](https://openairdocs.org/aircraft/N747WS), registered now
- Make and model: Cessna 402C
- Registry model: [Cessna 402C](https://openairdocs.org/model/cessna-402c) (OpenAirDocs)
- Aircraft serial: 402C0080
- System (JASC): [3310 · Flight Compartment Lighting](https://openairdocs.org/jasc/3310)
- Part: Post Light
- Condition: Shorted
- Location: Copilot Panel
- Stage of operation: NR
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/96ZZZX5658

## Discrepancy

PILOT REPORTED SEEING A SMALL AMOUNT OF SMOKE FROM UNDER COPILOT'S INSTRUMENT PANEL AND SMELLING SOMETHING 'ELECTRICAL' BURNING.  UPON INSPECTION, A POST LIGHT WAS FOUND SHORTED.  NO CIRCUIT BREAKERS TRIPPED.  A VERY THIN SPRING INSIDE THE SCREW ON CONNECTOR BURNED THROUGH AND STOPPED CURRENT FLOW.  THIS SPRING APPEARS TO BE A CIRCUIT PROTECTION DEVICE.

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