What was found
DURING CRUISE FLIGHT, A LOUD CLICK OR POP WAS HEARD. CREW NOTICED A STRONG ELECTRICAL BURNING ODOR IN THE COCKPIT THAT QUICKLY WENT AWAY. NO SMOKE WAS NOTED. NO CIRCUIT BREAKERS WERE TRIPPED. PERFORMED COCKPIT LIGHTING CHECK IAW MM 33-10-00, NO DEFECTS NOTED, CHECKED CABIN COCKPIT, AFT EQUIPT BAY, LOOKED BEHIND NR 1 & 2 CIRCUIT BREAKER PANELS, NO VISIBLE DEFECTS NOTED IAW MM 20-21-03.