As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: FLIGHTDECK DOOR JAMMED IN THE CLOSED POSITION AND COULD NOT BE OPENED FROM THE FLIGHTDECK SIDE. (NEEDED FLIGHT ATTENDANT TO PUSH FROM THE CABIN SIDE OF DOOR TO OPEN). ALL THREE LATCHES WERE RETRACTED WHILE JAMMED. MAINTENANCE ADJUSTED UPPER CLEARANCE OF COCKPIT DOOR (LOWERED DOOR) IAW M/M 52-51-00-820-001-A. OPS CHECK OK.