What was found
(CAN) "ON FINAL TO TXK A/C WAS ALMOST UNCONTROLLABLE. YAW DAMPER THREW A/C IN A LT BANK & THEN A RT BANK WITH AUTOPILOT OFF. IT SETTLED DOWN ENOUGH TO GET A/C ON GROUND."MAINT SIGN OFF AS FOLLOWS: PERFORMED FCC DIAGNOSTICS T/S IAW CRJ MM. NO DEFECTS NOTED. PERFORMED CHECK ON RUDDER PRIMARY & SECONDARY FEEL MECHANISM CENTERING SPRINGS. FOUND PRIMARY SPRING TENSION TO BE AT 5 LBS. SET PRIMARY SPRING TENSION TO 10 LBS IAW CRJ MM. CHECKED RUDDER CONTROL CABLE TENSIONS & PERFORMED RIGGING CHECK IAW CRJ MM. OPS CHECK GOOD. R&R NR 1 & 2 FCC IAPS CARDS IAW CARJ MM. OPS CHECKS WERE GOOD & A/C WAS TEST FLOWN.