As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FINAL APPROACH EXPERIENCED EXCESSIVE CABIN PRESSURIZATION SPIKE (2500 RATE), FOLLOWED BY CARGO DOOR AMBER CAS ANNUNCIATION. POST FLIGHT REVEALED CARGO DOOR HANDLE/VENT POPPED OPEN BUT DOOR ITSELF WAS CLOSED. PERFORMED RIGGING CHECKS AND PRESSURIZATION TEST. IAW AMM 21-00-00. OPS CHECK GOOD.