As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING MAINTENANCE INSPECTION, CHAFING WAS DISCOVERED ON THE SPIRAL ELECTRICAL CORD AT EACH OF 4 LOCATIONS IN THE L/E OF THE LT AND RT WINGS, 2 PER SIDE. THE SPIRAL ELECTRICAL CORD MAKES THE REQUIRED ELECTRICAL CONNECTIONS BETWEEN THE SLAT AND THE WING. THE OUTER HARNESS INSULATION WAS WORN THROUGH. THE HARNESSES ARE BEING REPAIRED OR REPLACED AS REQUIRED.