What was found
AIR TURNBACK, ACFT FAILED TO PRESSURIZE ON CLIMBOUT. OUTFLOW VALVE NOT MOVE IN AUTO, MOVED IN MANUAL ONLY. REMOVED AND REPLACED NR 1 CABIN PRESSURE CONTROLLER PER MM.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIR TURNBACK, ACFT FAILED TO PRESSURIZE ON CLIMBOUT. OUTFLOW VALVE NOT MOVE IN AUTO, MOVED IN MANUAL ONLY. REMOVED AND REPLACED NR 1 CABIN PRESSURE CONTROLLER PER MM.