What was found
HYDRAULIC LINE WAS FOUND TO HAVE A HOLE WORN IN IT, DURING REGULAR INSPECTION EVENT. THE CAUSE OF THE WEAR AND HOLE WAS FOUND TO BE A BOLT ON THE LANDING GEAR WEARING ON IT DURING EACH EXTENSION/ RETRACTION CYCLE. THIS LINE SUPPLIED HYDRAULIC PRESSURE TO THE UPLOCK ASSEMBLY FOR THE LANDING GEAR. LINE WAS REPLACED AND PROPER CLEARANCE WAS PROVIDED FOR THE NEW LINE. SUGGEST RELOCATING LINE OR REPOSITIONING UPLOCK ASSEMBLY.