What was found
FLL - FLT 1835, AT FL350, A LOUD POPPING NOISE WAS HEARD AND A SPARK WAS OBSERVED COMING OUT OF THE PILOTS OVERHEAD PANEL IN THE AREA OF ATT/GRN CALL BUTTONS. CREW ALSO NOTICED THAT THE NR 1 ENGINE RIGHT IGNITION CIRCUIT BREAKER HAD TRIPPED. FLIGHT LANDED IN FLL WITHOUT FURTHER INCIDENT. MX FOUND SIX SHORTED/BURNED WIRES AT THE NR 1 ENGINE START SWITCH. REPAIRED WIRES PER MM 20-10-15 AND REROUTED/SECURED WIRES TO KEEP THEM FROM CATCHING ON TRIM PANEL WHEN OPENING. RESET NR 1 ENGINE RIGHT INGNITION CIRCUIT BREAKER. STARTED NR 1 ENGINE IN BOTH LEFT AND RIGHT IGNITION. OPERATIONAL CHECK NORMAL. (M)