What was found
LANDING GEAR FAILED TO EXTEND WHEN THE HANDLE WAS PLACED DOWN. CYCLED THE HANDLE, NO HELP. GRAVITY EXTENTION SUCCESSFUL. COMPLIED WITH TSM 32-31-00-810-808-A IAW TSI 0081244. REMOVED AND REPLACED THE SAFETY VALVE 49GA, AND RELAY 62GA. FUNCTIONAL CHECKED THE EXTENTION, RETRACTION OF THE LANDING GEAR. OPS CHECKED GOOD. ACFT OK FOR SERVICE.