What was found
CLT/PHL - FLT 2127 - AFTER TAKEOFF, AIRCRAFT WOULD NOT MAINTAIN PRESSURIZATION. RETURNED TO FIELD. REPLACED NR 2 PRESSURIZATION CONTROLLER. (X)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CLT/PHL - FLT 2127 - AFTER TAKEOFF, AIRCRAFT WOULD NOT MAINTAIN PRESSURIZATION. RETURNED TO FIELD. REPLACED NR 2 PRESSURIZATION CONTROLLER. (X)