As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
"CABIN ALT.HIGH" LIGHT ON AT 20,000FT CONTINUED LOSS OF DIFF PRESSURE. AIR LEAK FOUND ALONG LOWER EDGE OF AIRSTAIR DOOR. SEALED ALONG EDGE OF FUSELAGE SKIN AT BOTTOM OF AIRSTAIR DOOR IAW BE1900D MAINTENANCE MANUAL 20-10-00 AND PRESSURE CHECKS GOOD ON GROUND IAW BE19000D MAINTENANCE MANUAL 21-30-00.