As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AMBER "CABIN ALT" MSG DISPLAYED W/CABIN ALTITUDE INDICATING 10,000FT AT FL450. PAX OXYGEN WAS USED; EMER DESCENT WAS INITIATED. PERFORMED BAGG DOOR SEAL T/S CHECKLIST DUE TO BAGG DOOR SEAL MSG. PURGED SERVICE AIR SYS AND FOUND CARGO DOOR SEAL VALVE OUT OF ADJUSTMENT. MADE PROPER ADJUSTMENT TO VALVE. OPS CHECKS GOOD AT THIS TIME. WORK IAW MM 21-30-00.