As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOSS OF AUTO PRESSURIZATION OCCURRED AFTER TAKEOFF. FOUND CABIN PRESSURE AUTO/MANUAL CIRCUIT BREAKER POPPED. FOLLOWED COCKPIT OPERATING MANUAL PROCEDURES AND RESET CIRCUIT BREAKER. REGAINED CABIN PRESSURIZATION THROUGH MANUAL CONTROL. FLIGHT RETURNED TO DTW AND LANDED WITHOUT INCIDENT. REPLACED PRE-PRESSURE CONTROLLER. OPERATIONAL CHECK OK AND AIRCRAFT RETURNED TO SERVICE.