As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN DOOR HANDLE UNLATCHED IN FLIGHT. FLIGHT ATTENDANT REPORTED THAT DOOR OPENED APPROX 1 INCH. ADJUSTED DOOR LIFT MECHANISM, DOOR STOP BOLTS, AND DOOR SEAL VALVE. GROUND RAN AIRCRAFT AND PRESSURIZED TO 5 PSI WITH NO LEAKS NOTED. OPERATED DOOR HANDLE THROUGH SEVERAL CYCLES NO DEFECTS.