As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MSY/CLT - FLT 2310 - AFTER TAKEOFF, CABIN WOULD NOT PRESSURIZE. THE AIRCRAFT RETURNED TO THE FIELD AND LANDED WITHOUT INCIDENT. THE AIRCRAFT WAS FERRIED TO CLT FOR MAINTENANCE WHERE THE ELECTRICAL CONNECTOR TO THE LEFT AIR CONDITIONING PRESSURE REGULATOR VALVE WAS REPLACED. (X)