What was found
AIR TURNBACK, AIRCRFT WOULD NOT PRESSURIZE AFTER TAKEOFF. REMOVED AND REPLACED PRESSURE CONTROLLER PANEL PER MM.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIR TURNBACK, AIRCRFT WOULD NOT PRESSURIZE AFTER TAKEOFF. REMOVED AND REPLACED PRESSURE CONTROLLER PANEL PER MM.