What was found
(REF MODEL 35 SERIES IPC FIG. 27) LT AILERON CABLE FOUND RIDING ON PROP CONTROL CABLE SHEATH, ABOUT 2 INCHES AFT OF FIREWALL. AILERON CABLE WAS WORN ABOUT HALF THROUGH, AND THE PROP CABLE WAS WORN THROUGH THE SHEATH TO THE INNER STEEL CABLE. (VERY DIFFICULT TO ACCESS THIS AREA FOR VISUAL INSPECTION.) NO INDICATION OF RUBBING OR DRAGGING DURING GROUND CONTROL SYSTEM CHECKS, OR IN FLIGHT. IT IS RELATIVELY EASY TO HAVE THE PROP CONTROL CABLE DISPLACED INTO CONTACT WITH THE AILERON CABLE WHEN WORKING IN THIS AREA DURING, FOR EXAMPLE, PANEL MODIFICATIONS OR AVIONICS UPGRADES. RECOMMEND VISUAL AND TACTILE INSPECTION IN THIS AREA TO CONFIRM CLEARANCE. UPON REMOVAL OF CABLE ASSEMBLY FOR REPLACEMENT, FOUND ADDITIO