As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE PAX DOOR OUT HANDLE CAUTION MESSAGE ILLUMINATED SEVERAL TIMES DURING THE FLIGHT. THE AIRCRAFT WAS FERRIED TO CLT WHERE MAINTENANCE REMOVED & REPLACED THE PAX DOOR OUTER HANDLE PROXIMITY SWITCH IAW CRJ200 AMM 52-70-04-000(400)-803. AN OPERATIONAL CHECK FLIGHT WAS PERFORMED WITH NO DISCREPANCIES NOTED. THE AIRCRAFT WAS THEN RELEASED FOR SERVICE.