What was found
FLT 2030 - MHR-PDX - AFTER TAKEOFF, RIGHT MAIN GEAR FAILED TO INDICATE UP AND LOCKED. AFTER THREE MINUTES, WITH GEAR UP, LIGHTS EXTINGUISHED. PERFORMED FLY-BY BY TOWER, AND GEAR WAS VISUALLY CHECK UP. OPERATIONALLY CHECKED NORMAL DURING GEAR EXTENSION FOR APPROACH AND LANDING TO PDX. THE AIRCRAFT LANDED SAFELY WITHOUT ANY FURTHER PROBLEMS. VISUALLY INSPECTED LEFT AND RIGHT GEAR SAFETY SWITCHES AND FOUND SECURE AND TIGHT. ALL INDICATIONS NORMAL ON GROUND AND NO DEFECTS WERE NOTED. THE AIRCRAFT WAS RETURNED TO SERVICE. (M)