As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) WHILE TAXIING STEERING INTERMITTENTLY FROZE WITH BOTH RUDDER PEDALS & TILLER COULD BE OVERPOWERED & THEN SEEMED TO BREAK FREE WITH ENOUGH FORCE. FOUND THE NLG STEERING COLLAR EXCESSIVELY WORN & ROCKING DURING ALTERNATING TURNING ACTION. COLLAR REPLACED IAW AMM 32-51-61. NOSE WHEEL STEERING TEST CARRIED OUT IAW AMM 32-51-00 & OPERATES NORMALLY. OPERATOR ADDING A STEERING FREE PLAY CHECK EVERY 2 YR CHECK. SDR FILE CLOSED.