As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
1L DOOR WOULD NOT DISARM ON ARRIVAL AT THE GATE. BOTH THE COCKPIT AND THE FFA PANEL WERE SHOWING ARM. THE MX HAD TO USE EXCESSIVE AMOUNT OF FORCE TO DISARM. GROUNDED - YES. 1L DOOR ESCAPE SLIDE ARM AND DISARM LEVER WORKING PROPERLY IAW AMM OPS TEST 52-71-00-710-802-A. OPS CGECK GOOD AIRCRAFT OK FOR SERVICE.