What was found
PILOT REPORTED, "WHEN LANDING GEAR HANDLE PULLED- DOWN, BURNING ODOR OCCURRED, PLEASE CHECK ELECTRICAL WIRE." DURING TROUBLESHOOTING, FOUND POWER WIRE CONNECTION TO THIRD ROW BUS-BAR LOOSE. TIGHTENED CONNECTION, AND PERFORMED OPS CHECKS OF ALL EQUIPMENT ON THAT BUS-BAR. INCLUDING LANDING GEAR SYS, TO ENSURE INDICATIONS OPERATED PROPERLY. VISUAL INSPECTION OF WIRES IN THE AREA SHOWED NO SIGNS OF DAMAGE FROM HEAT.