What was found
DIVERTED TO DEN, DUE TO A PRESSURIZATION PROBLEM AFTER TAKEOFF FROM COS. REPLACED LEFT PACK SHUTOFF VALVE. SYSTEM CHECKED NORMAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DIVERTED TO DEN, DUE TO A PRESSURIZATION PROBLEM AFTER TAKEOFF FROM COS. REPLACED LEFT PACK SHUTOFF VALVE. SYSTEM CHECKED NORMAL.