What was found
RIGHT MAIN GEAR FAILED TO EXTEND. INVESTIGATION REVEALED THE WHEEL BAIL CABLE WAS PREVIOUSLY REPLACED. THE CABLE WAS 2 INCHES TOO SHORT AND THE WRONG SWAGED TERMINAL WAS INSTALLED ALLOWING THE CABLE TO BIND AT THE ATTACHMENT. THIS BINDING, AND SHORTNESS, CAUSED THE CABLE TO PREVENT THE INBOARD RIGHT GEAR DOOR TO MOVE CLEAR OF THE LANDING GEAR WHEEL ASSEMBLY UPON GEAR EXTENSION. SERVICE CHANGE 2003 PERTAINS TO THIS MECHANISM. NO RECORD WAS FOUND OF COMPLIANCE OF THIS SERVICE CHANGE.