As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT OVER EMERGENCY EXIT FOUND BLOCKED TO OPEN DURING INVESTIGATION CABIN LINING ATTACHING SCREW FOUND NOT PROPERLY INSTALLED (SCREW IN POSITION UPPER AFT DOOR CUT OUT) THIS CAUSING INTERFERENCE WHITH EMERGENCY DOOR ASSY AND BLOCKED THE OPENING OF THIS DOOR.