As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DOOR WILL NOT CLOSE UNLESS I OVERRIDE IT. WILL NOT LOCK AS WELL. WHEN CLOSED CAN OPEN DOOR WITHOUT PUSHING RED BUTTON. DISASSEMBLED MAIN DOOR AND PERFORMED GVI OF COMPONENTS WITH ZERO DISCREPANT FINDINGS. PERFORMED RESET IAW CABIN DOOR RESET PROCEDURE AND SUCCESSFULLY OPS CHECKED THE DOOR 6 TIMES IN A ROW. RESTORED AIRCRAFT TO ORIGINAL CONFIGURATION. WORK PERFORMED IAW AMM 52-10-00.