What was found
AUTO PRESSURIZATION FAILED AFTER TAKEOFF. FLIGHT RETURNED TO MSP AND LANDED WITHOUT INCIDENT. REPLACED THE NR 1 PRESSURE CONTROLLER. OPERATIONAL CHECK OK. AIRCRAFT RETURNED TO SERVICE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AUTO PRESSURIZATION FAILED AFTER TAKEOFF. FLIGHT RETURNED TO MSP AND LANDED WITHOUT INCIDENT. REPLACED THE NR 1 PRESSURE CONTROLLER. OPERATIONAL CHECK OK. AIRCRAFT RETURNED TO SERVICE.