What was found
THE AN5-51 BOLT THAT ATTACHES THE SPRING ARM AND DRAG LINK TO THE TRUNNION WAS REMOVED FOR INSPECTION AFTER NOSE GEAR FAILED TO EXTEND. THE WEAR PATTERN APPEARED NORMAL, BUT WAS DEEP ENOUGH TO REQUIRE REPLACEMENT. SUBMITTER RECOMMENDED INSPECTION OF THIS BOLT WITHIN THE NEXT 25 HOURS TIS FOR WEAR. IF WORN, REPLACE BEFORE FURTHER FLIGHT. THEREAFTER, INSPECT EVERY 500 HOURS TIS IF AIRCRAFT USED FOR PILOT TRAINING, OR EVERY 5 YEARS FOR NON-TRAINING AIRCRAFT. (X)