What was found
AIR TURNBACK, UNABLE TO CONTROL CABIN PRESSURE. REMOVED AND REPLACED CABIN PRESS CONTROLLER. PERFOMED TEST AND LEAK TEST, OPS CHECK GOOD PER MM.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIR TURNBACK, UNABLE TO CONTROL CABIN PRESSURE. REMOVED AND REPLACED CABIN PRESS CONTROLLER. PERFOMED TEST AND LEAK TEST, OPS CHECK GOOD PER MM.