What was found
EWR---CO2996, CREW REPORTED ON CLIMB-OUT, ARC FLASHING OBSERVED BELOW LEFT CAPTAINS INSTRUMENT PANEL. CAPTAINS INSTRUMENT PANEL LIGHTS OUT AND CIRCUIT BREAKER POPPED. ALSO, INSULATION BURNING ODOR NOTED. EWR, MAINTENANCE INSPECTED AND RELEASED THE AIRCRAFT IAW MEL NR 33-10-00 CATEGORY "C" CONTROL NUMBER 062418, AIRCRAFT RETURNED TO SERVICE. EWR, MAINTENANCE RESET CAPTAINS PILOT LIGHTS CIRCUIT BREAKER AND PERFORMED OPERATIONAL CHECK OF PILOTS INSTRUMENT PANEL LIGHTS IAW EMB145 AMM NR 33-12-00. OPS CHECKED GOOD, NO BURNING SMELL NOTED. MEL CLEARED AND AIRCRAFT RETURNED TO SERVICE.