As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) FLIGHT CREW TRIED TO CLOSE THE CABIN DOOR TO MOVE THE AIRCRAFT, DOOR WOULD NOT CLOSE DUE TO LOWER FORWARD DOOR LATCH BOLT NOT RETRACTING TO SHUT DOOR. MAINTENANCE CHECK FOUND THE BOLT HAD SHEARED AT THE END OF THE THREADED PORTION. NO ALIGNMENT FAULT OR SIGNS OF THE DOOR TRYING TO BE SHUT WITH THE BOLTS EXTENDED FOUND.