What was found
RETURNED TO FIELD. UNABLE TO PRESSURIZE AIRCRAFT IN AUTO AND STANDBY MODES. *S/D* CABIN PRESSURE CONTROLLER FAILED. REPLACED CABIN PRESSURE CONTROLLER.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
RETURNED TO FIELD. UNABLE TO PRESSURIZE AIRCRAFT IN AUTO AND STANDBY MODES. *S/D* CABIN PRESSURE CONTROLLER FAILED. REPLACED CABIN PRESSURE CONTROLLER.