As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAXIING INTO GATE, UNABLE TO OPEN MAIN CABIN DOOR FROM INSIDE OR OUTSIDE. ***AIRCRAFT REMOVED FROM SERVICE*** CLEANED, INSPECTED, AND LUBED PAX DOOR SEAL IAW AWAC SUP 19-152A. OPS CHECK GOOD AT THIS TIME. OPERATED FROM INSIDE AND OUTSIDE, OPENED AND CLOSED SMOOTHLY.