What was found
PILOT REPORTED THAT WHILE ON A CHECK FLIGHT THE LANDING GEAR WAS SELECTED DOWN, NOTHING HAPPENED AND HAD TO MANUALLY EXTEND THE GEAR, GOT 3 GREENS AND LANDING. MX INSPECTED THE SYS, RESET CB IN LT WHEEL WELL AND CHECKED RELAY K13, PERFORMED GEAR SWINGS IAW AIM MI 32-01, OPS CK GOOD.