What was found
DURING AN ANNUAL INSPECTION, THE FLEXIBLE FUEL VAPOR VENT LINE WAS FOUND CHAFED AGAINST THE POSITIVE BATTERY CABLE WHICH SUPPLIES POWER TO THE STARTER CONTACT SOLENOID. UPON REMOVAL, THE FUEL LINE SHOWED EVIDENCE OF ARCHING AND THE STEEL OUTER BRAIDING WAS BURNED AWAY. THE INSULATION ON THE BATTERY CABLE WAS WORN AWAY AND BARE WIRE WAS EXPOSED. PROBABLE CAUSE: IMPROPER FUEL LINE, BATTERY CABLE ROUTING, PROTECTION, AND ENGINE TO FIREWALL CLEARANCE LIMITATIONS.