As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WOULD NOT PRESSURIZE AFTER T/O, CABIN ROC SHOWED 400 FT CLIMBS THROUGH ENTIRE CLIMB. C/W LOSS OF PRESSURIZATION CK LIST BUT COULD NOT STOP CLIMBING. CARGO HEAT OUTFLOW VLV CLOSED. REPLACED WATER SEPARATOR ASSY AND DAMAGED DUCT. PRESSURIZED A/C TO 6 PSI. SYSTEM CHECKS NORMAL.