What was found
DURING A 50-HOUR OIL CHANGE, THE AIRCRAFT WAS JACKED UP IN ORDER TO CHANGE BOTH MLG TIRES. WHILE SPOT-CHECKING NLG TIRE, EXCESSIVE PLAY WAS FOUND IN THE NLG STEERING LINKAGE. CLOSER EXAMINATION REVEALED THE STEERING STOPS WERE DAMAGED AND THE NLG CENTERING SPRING WAS BROKEN. NORMALLY, THE CENTERING SPRING TRAVEL IS GREATER THAN THE STEERING STOPS. SUBMITTER SUSPECTED THE STEERING STOPS WERE DAMAGED DURING TOWING ALLOWING THE STEERING TRAVEL TO EXCEED THE STOPS AND BREAK THE CENTERING SPRING. (X)