As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AMBER CAS MESSAGE "WING OVERFILL-L" KEPT ILLUMINATING (3 TIMES). WITH ILLUMINATION LEFT WING VENTED FUEL. TROUBLE SHOOT TO BAD INBOARD AND OUTBOARD LEFT WING FUEL TRANSFER VALVES. REMOVED INBOARD AND OUTBOARD FUEL TRANSFER VALVES AND INSTALLED NEW FUEL TRANSFER VALVES. LEAK CHECK AND OPS CHECKS GOOD. WORK DONE IAW MM 28-70-06.