As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING AD COMPLIANCE, WIRES FOUND CHAFED IN CENTER TANK FUEL LEVEL SWITCH. CHAFE LOCATED AT FRONT SPAR CONDUIT EXIT POINT AND MEASURED 1.25 INCHES IN LENGTH. STRANDS WERE BROKEN AND PROTUDING, NO VISIBLE SIGNS OF ARCING AT CHAFE POINT. FUEL WAS DISCOVERED INSIDE CONDUIT IN QUESTION. FLOAT SWITCH AND WIRING REPLACED.