As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT BLOCK IN , WHEN FIRST OFFICER TRIED TO OPEN RT SIDE DOOR, IT MET WITH RESISTANCE. MX FOUND THE R1 SLIDE RAFT DROPPED AND TOUCHING THE LOWER VENT DOOR CREATING FORCE TO OPENED THE DOOR . R1 SLIDE RAFT ADJUSTED IAW MM 25-66-00-5. OPS CHECKED OK, DOOR OPEN NORMALY.