As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLOW LIGHT ILLUMINATED AND CABIN ALTITUDE BEGAN TO CLIMB AT MAX RATE WITH OUTFLOW VALVE FULLY CLOSED. EMERGENCY DECLARED. EXECUTED QRH PROCEDURE AND FOUND COOLING TURBINE DUCT TO WATER SEPERATOR V CLAMP DISCONNECTED. RECONNECTED CLAMP.