As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) PILOT REPORTED LOUD BANG ON TAXI IN FROM FLIGHT AND RUDDER FELT LOOSE. RUDDER CONTROL SYSTEM INSPECTED FOUND RUDDER RETURN SPRING BROKEN ON LT RUDDER BAR. NEW SPRING WAS INSTALLED RUDDER FEELS NORMAL WHEN MOVED. NO IDEA HOW OLD THE OLD SPRING WAS. RT SPRING INSPECTED AT SAME TIME IT LOOKED FAIRLY NEW.