As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN PASSENGER DOOR WARNING MSG CAME ON IN CRUISE FLIGHT, RAMP PERSONNEL NOTED OUTER HANDLE OPEN. INNER HANDLE HANDLE IN PROPER POSITION AND LOCKED / INSPECTED MAIN DOOR LINKAGE WITH NO FAULTS NOTED. PERFORMED OPS CHECK OF DOOR IAW CRJ 700 AMM 52-11-00-710-801. ALL INDICATIONS NORMAL.