As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED OVERSPEED WARNING AT 230 KTS WITH SLATS AND FLAPS AT ZERO DEGREES. CREW RETURNED TO FIELD AND LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT, R & R RT SLAT BRAKE POSITION SENSOR UNIT AND PERFORMED CHECKS IAW AMM. ACFT RELEASED FOR SERVICE.