As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) FUEL QTY INDICATION REPORTED AS UNDER-READING. TROUBLESHOOTING DETERMINED A FAILED WIRING HARNESS ASSY IN THE WET WING TANK. THIS IS THE THIRD FAILURE OF THIS HARNESS ON 2 COMPANY ACFT, IN EITHER LT OR RT WINGS. INSTALLING A NEW HARNESS HAS RECITIFED THE PROBLEM IN EACH CASE.