As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN ALT CAUTION MESSAGE IN FLIGHT. DISAPPEARED ONCE CABIN PRESSURE REGAINED IN FLIGHT FLIGHT 5308 - FILED CLOSED PERFORMED GVI OF OUTFLOW VALVES. NO DEFECTS NOTED. ACFT WOULD NOT PRESSURIZE ABOVE .6 P UNTIL CABIN PRESSURE CONTROLLER 1 CB WAS PULLED. REMOVED AND REPLACED CABIN PRESSURE CONTROLLER #1 IN REFERENCE TO CRJ 200 AMM. OPS CHECKS GOOD. ACFT PRESSURIZES NORMALLY.