As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON SELECTION OF GEAR UP ON TAKEOFF FROM OAJ, CREW REPORTED ANTI-SKID OUTBOARD CAS MESSAGE, FOLLOWED BY RED MASTER WARNING GEAR UNSAFE, WITH LEFT MAIN LANDING GEAR IN AN UNKNOWN POSITION. BOTH MESSAGES WENT AWAY WITHIN 20 SECONDS. CREW COMPLIED WITH QRH. GEAR WAS MANUALLY EXTENDED AND AIRCRAFT LANDED IN CLT WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT LANDING GEAR SYSTEM, REMOVED AND REPLACED MLG (MAIN LANDING GEAR) SELECTOR VALVE AND PERFORMED CHECKS USING AIRCRAFT MAINTENANCE MANUALS. AIRCRAFT RELEASED FOR SERVICE.