As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) HAD OCCASIONAL CAS MESSAGE, XX MID-WING FUEL PROBE FAIL. AS PART OF THE TROUBLESHOOTING WE HAD REMOVED THE PROBE TO CHECK FOR CONTACT DAMAGE, PRESENCE OF MOISTURE AND TO INSPECT THE WIRING TO IT. IT WOULD DISAPPEAR FOR A TIME AND THEN RETURN. FINALLY SWAPPED LIKE PROBES SIDE-TO-SIDE TO ELIMINATE FUEL COMPUTER AS A SOURCE OF THE PROBLEM. PROBE FINALLY FAILED IN THE, SWAPPED, POSITION. INSTALLED NEW PROBE.