As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REPLACED FUEL QUANTITY SENDING UNIT, SN 2366 TT THIS UNIT 447.3 HOURS, INSTALLED 31 OCT 2014. SINCE NEW SENDER WAS SHOWING HIGHER FUEL LEVELS THAN AVAILABLE IN TANK. HAS BEEN A REOCCURRING PROBLEM WITH THESE SENDING UNITS WITH MULTIPLE ROTORCRAFT.