As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) CREW REPORTED COCKPIT OVERHEAD PANEL LIGHTS CIRCUIT BREAKER POPPED AND ABOUT THE SAME TIME REPORTED SMELLING SMOKE. PCB PANEL REMOVED AND FOUND TO OF SHORTED OUT CAUSING SMALL BURN HOLE THROUGH PANEL SCORCHING METAL BEHIND PANEL. CAUSE OF SHORT BELIVED TO BE MOISTURE FROM EXCESSIVE CONDENSATION. (TC NR 20070122010)