As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:N/A DURING CLIMB AIR LEAK WAS HEARD. LATER DURING CLIMB ECAM MSG APPEARED DOOR L FWD CABIN DOOR NOT CLOSED. ALL OTHER INDICATIONS NORMAL. AFTER LEVEL OFF WE REALIZED IT WAS THE DOOR HORN & RED LIGHT ON THE DOOR WAS FLASHING. DURING DECENT ALL PERFORMED TEST OF SLIDE ARM SYSTEM PER TSM 52-73. TEST NORMALLY SUSPECT DOOR HANDLE NOT SEATED. NO HISTORY.