What was found
SEA - ELEVATOR CONTROL HAS A FLAT FEEL. THE CONTROLS MOVE BACK AND FORTH A COUPLE OF INCHES WITH NO ELEVATOR MOVEMENT. AIRCRAFT FERRIED TO PORTLAND FOR REPAIRS. MAINTENANCE PERFORMED A OPERATIONAL CHECK OF THE ELEVATOR CONTROL SYSTEM IAW AMM TASK 27-31-00-710-801-A01. OPERATIONAL CHECKS GOOD WITH NO DEFECTS NOTED. PERFORMED MOVEMENT CHECK WITH AC AND ELECTRIC HYDRAULIC PUMPS ACTIVE WITH NO DEFECTS NOTED. PERFORMED GENERAL VISUAL INSPECTION OF THE CONTROL QUADRANTS WITH NO DEFECTS NOTED. COULD NOT DUPLICATE ORIGINAL DISCREPANCY. AIRCRAFT RETURNED TO SERVICE. NO PARTS REPLACED.