What was found
PRESSURIZATION SYSTEM FAILED TO PRESSURIZE DURING CLIMB OUT. AIRCRAFT RETURNED TO KCVG FOR UNSCHEDULED LANDING.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PRESSURIZATION SYSTEM FAILED TO PRESSURIZE DURING CLIMB OUT. AIRCRAFT RETURNED TO KCVG FOR UNSCHEDULED LANDING.