What was found
FLIGHT CONTROLS SLUGGISH TO RETURN TO NEUTRAL AFTER PUSHING FORWARD AND AFT. RETURNED TO GATE AND REMOVED FROM SERVICE. C/W FIM TASK 27-30-00-810-806-A-4.A.B.(2).F.G.(2)H.I.(1) DAMPENERS FOUND TO BE LEAKING. NO FURTHER DEFECTS NOTED. SERVICED LH AND RH CONTROL COLUMN DAMPERS REF AMM 12-21-16-03. MOVED CONTROL COLUMN FWD AND AFT AND NOTICED NO LEAKS OR SLUGGISH MOVEMENT. NFDN. COMPLETED FREEDOM OF MOVEMENT CHECK, ENSURED FULL TRAVEL AND VERIFIED PROPER DIRECTION OF MOVEMENT, NO DEFECTS NOTED PER GPM 9.2 RETURNED TO SERVICE.