BEECH 1900 SUFFERS LOSS OF CAPT'S RUDDER CONTROL.

Narrative

THE FIRST FLT OF THE DAY CHKLIST WAS COMPLETED DURING THE RUN-UP. ALL SYS CHKED NORMAL. TAXI; TKOF; DEP AND CRUISE WERE NORMAL AS WELL. WE WERE CLRED FOR A VISUAL APCH BY CTR AND CHANGED TO THE CTAF FREQ TO ANNOUNCE OUR POS. DURING THE APCH PHASE OF FLT; THE CAPT CALLED FOR THE BEFORE LNDG CHKLIST. IT WAS COMPLETED. WHEN THE CAPT DISCONNECTED THE YAW DAMPER; HIS RUDDER PEDALS MOVED FREELY WITH NO RESISTANCE. I THEN CHKED MY RUDDER PEDALS AND I HAD FULL CTL OF THE RUDDER. WE XFERRED THE FLT CTLS AND I BECAME THE PF. I LANDED THE ACFT WITHOUT INCIDENT AND TAXIED INTO THE GATE. WE THEN PERFORMED THE YAW DAMP/RUDDER BOOST CHK AGAIN. THE FO'S RUDDER CTL PASSED; WHILE THE CAPT'S FAILED. WE THEN INFORMED MAINT AND DISPATCH. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: MAINTENANCE DETERMINED THE PUSHROD MAKING THE PHYSICAL CONNECTION FROM THE PEDALS TO THE RUDDER HAD FAILED ON THE CAPTAIN SIDE. THE INDEPENDENTLY REDUNDANT SYSTEM ON THE FIRST OFFICER'S SIDE WAS INTACT AND FUNCTIONAL. THE INCIDENT WAS REPORTED TO THE FAA/NTSB WHO DETERMINED NO INVESTIGATION WAS NECESSARY BECAUSE THERE WAS NO LOSS OF RUDDER CONTROL.