As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 5816 -PRES/DE- DUE TO CABIN PRESSURE WARNING ON DECENT. CORRECTIVE ACTION: FOUND DUCT BROKEN ABOVE ACM, REPLACED DUCT AND SEALS. R/R OUTFLOW VALVE ACT ASSY AND ACM AND SENSE LINE FOR LOW LIMIT VALVE. OPS AND LEAK CK GOOD. C/W SINGLE PACK CONF CHECK.