What was found
LANDING GEAR MOTOR CONTINUED TO RUN AFTER LANDING GEAR WAS DOWN AND LOCKED. AIRCRAFT LANDED AND TAXIED TO APRON. FLIGHT CREW TURNED OFF MASTER TO STOP MOTOR FROM RUNNING. MAINTENANCE WAS CALLED TO PULL UNDER FLOOR POWER PACK CIRCUIT BREAKER. MAINTENANCE CHECKED POWER PACK FOR A POSSIBLE OVER TEMPERATURE CONDITION BUT FOUND POWER PACK COOL. AIRCRAFT TAXIED TO HANGAR. LANDING GEAR MOTOR RELAY CONTACTS FOUND FROZEN IN THE CLOSED POSITION. MAIN GEAR RELAY REPLACED, SYSTEM FUNCTION TESTED SERVICEABLE IAW PC12/45 MAINTENANCE MANUAL ATA CHAPTER 29.