As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: UPON BLOCKING IN GATE AGENT REPORTED THE ENTRY DOOR WAS MORE DIFFICULT TO OPEN, HAD MORE OF A VACUUM SEAL AS IF CABIN WAS NOT DEPRESSURIZED. COULD NOT DUPLICATE FAULT, HOWEVER, REPAIRED DOOR SEAL IAW AMM 52-09-10-350-801. ALL OPS CHECK, SYSTEMS TESTS AND DVI ACCOMPLISHED; L1 DOORS OPS CHECKS GOOD PER AMM 52-11-00