As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB TO ALTITUDE CABIN FAILED TO MAKE MAXIMUM DIFFERENTIAL PRESSURE AND HAD A HIGHER THAN NORMAL CABIN. FOUND A P3 AIR TUBE DISSCONNECTED AT RT HEAT EXCHANGER IN RT WING. ON MX FLIGHT FOUND LT FLOW CONTROL VALVE WEAK. REPLACED DUCT AND FLOW CONTROL VALVE.