As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN DOING RUDDER PRE-TAXI CHECK, UNUSUAL CLICKING SOUND (APPROX 1/2 TRAVEL) WITH BUMP FELT ON PEDDLES ON CAPTS SIDE. RETURNED TO GATE. REPLACED RUDDER PEDAL ADJUSTMENT JACK SHAFT AND SCREW. OPS CHECKS GOOD IAW 27-21-05. P/N ON 600-90223-5.