As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DOOR 3R WILL NOT OPEN. FOUND RETRACTABLE DOOR MECHANISM STOP BRACKET LOOSE AND JAMMING THE BOTTOM OF THE RETRACTABLE DOOR PREVENTING THE DOOR FROM DISARMING. ADJUSTED AND SECURED THE STOP BRACKET PER MM. DOOR ARMING FUNCTION, OPS CHKS GOOD.