As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING MAINTENANCE INSPECTION FOUND THE PASSENGER DOOR DIFFICULT TO PUSH OUT OF FUSELAGE FRAME---DIFFICULT TO OPEN. THE AIRCRAFT WAS REMOVED FROM SERVICE. COMPLIED WITH INSIDE HANDLE MAIN CABIN DOOR PULL TEST 52 18 00 820. FORCE WAS FOUND TO BE 40LBS. THE AIRCRAFT WAS RETURNED TO SERVICE.