As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLAPS FAIL AMBER CAS ILLUMINATED, FLAPS FAILED AT 0 SLATS EXTENDED. ON INSPECTION OF FLAPS FOUND NOT FULLY RETRACTED WITH HANDLE IN FULL UP POSITION. WHEN POWER APPLIED TO ACFT FLAPS FULLY RETRACTED. COMPLETED SEVERAL CYCLES OF FLAPS WITH NO DEFECTS. NO FAULT CODES ON CONTROLLER. FOUND FLAPS TO BE VERY WET AND SUSPECT FLAPS FROZE UP. HEAVY RAIN REPORTED BY CREW AT DEPARTURE AIRPORT.