What was found
AIR TURNBACK - CABIN ALTITUDE WOULD NOT CLIMB AT ALL IN AUTO. REMOVED AND REPLACED CABIN PRESSURE CONTROLLER PER MM.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIR TURNBACK - CABIN ALTITUDE WOULD NOT CLIMB AT ALL IN AUTO. REMOVED AND REPLACED CABIN PRESSURE CONTROLLER PER MM.