What was found
AIRCRAFT WAS GROUNDED: GEAR HANDLE IS EXTREMELY DIFFICULT TO MOVE FROM DOWN TO UP TO OFF (TAKEOFF) AND DOWN FOR LANDING. UPON INSPECTION FOUND UNION ON THE HYDRAULIC MODULE SYSTEM-B LEAKING. REPLACED PACKING, PER AMM 27-09-21. SERVICED HYDRAULIC, PER AMM 12-12-00. ACCOMPLISHED OPERTIONAL CHECK OF THE LANDING GEAR RETRACTION SYSTEM, PER AMM 32-32-00. NO LEAKS NOTED, OPERTIONAL CHECK SATISFACTORY.