As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, EP BRAKE CAS MESSAGE CAME ON. ACCOMPLISHED QRH ITEMS, LIGHT WENT OUT AND 5 MINUTES LATER CAME BACK ON. RETURNED TO THE FIELD WITH NORMAL ATC HANDLING. MAINTENANCE ADJUSTED THE EMERGENCY PARK BRAKE LINKAGE, OPERATIONAL CHECK GOOD.