As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED FLAPS FAIL CAUTION MESSAGE WHEN FLAPS SELECTED TO 30 DEGREES DURING APPROACH. LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT IAW FIM, R & R FLAP ELECTRONIC CONTROL UNIT AND PERFORMED CHECKS IAW AMM. ACFT RELEASED FOR SERVICE.