What was found
CABIN PRESSURE CANNOT BE MAINTAINED IN AUTO. CABIN ALTITUDE RISES IN DESCENT. *S/D* AIR CYCLE MACHINE FAILED. REPLACED AIR CYCLE MACHINE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CABIN PRESSURE CANNOT BE MAINTAINED IN AUTO. CABIN ALTITUDE RISES IN DESCENT. *S/D* AIR CYCLE MACHINE FAILED. REPLACED AIR CYCLE MACHINE.