As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FORWARD ENTRY DOOR OPENED UPON TOUCHDOWN. AFTER FURTHER INSP FOUND THE UPPER GUIDE ARM WORN CAUSING THE DOOR OPEN LOCK NOT TO WORK AND DOOR HARD TO CLOSED. REMOVED AND REPLACED THE UPPER GUIDE ARM IAW 727 M/M 52-11-001-5. OPS CHECK GOOD OF THE DOOR OPERATION A/C OK FOR CONT SERVICE.