As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON FIRST FLIGHT OF THE DAY INITIAL WALK AROUND INSPECTION, CAPTAIN NOTICED PAX MAIN DOOR SLIGHTLY LOOSE WHEN FULLY CLOSED WITH INDICATOR FULLY IN VIEW. PAX NEVER BOARDED. AIRCRAFT DID NOT LEAVE GATE. RE-ADJUSTED UPPER, FWD AIRSTAIR DOOR CABLE, OPS CHECK NORMAL.