What was found
AUTO PRESSURIZATION SYSTEM FAILED AFTER TAKEOFF. FLIGHT WAS RETURNED TO DTW AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED CABIN PRESSURE AMPLIFIER AND DIFFERENTIAL PRESSURE SENSOR, OPERATIONAL CHECK NORMAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AUTO PRESSURIZATION SYSTEM FAILED AFTER TAKEOFF. FLIGHT WAS RETURNED TO DTW AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED CABIN PRESSURE AMPLIFIER AND DIFFERENTIAL PRESSURE SENSOR, OPERATIONAL CHECK NORMAL.