What was found
LAX - INITIALLY, AFTER GEAR SELECTED UP, ALL INDICATIONS SHOWED GEAR UP. NO LIGHTS ON GEAR PANEL, THEN MAIN GEAR ONLY CYCLED CLIMBING THROUGH 2100 FEET. F/O SAID ACFT FELT SLUGGISH UNTIL GEAR CYCLED, LIKE GEAR DOORS WERE OPEN. WHEN GEAR CYCLED, BOTH RED AND AMBER MAINS CAME ON, THEN LEFT AND RIGHT GREEN LIGHTS FLASHED, THE NOSE GEAR WENT UP NORMALLY NO SE GEAR DID NOT CYCLE. FERRY TO PDX FOR REPAIRS. REMOVED AND REPLACED RT MLG DOOR LINKAGE WITH NEW. OPS CHECK GOOD. RETURNED TO SERVICE.