What was found
DURING CLIMB-OUT FROM MSP, THE CREW WAS UNABLE TO PRESSURIZE THE AIRCRAFT. RETURNED TO MSP AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE SKIN AIR EXTRACT VALVE. OPERATIONAL CHECK OK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING CLIMB-OUT FROM MSP, THE CREW WAS UNABLE TO PRESSURIZE THE AIRCRAFT. RETURNED TO MSP AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE SKIN AIR EXTRACT VALVE. OPERATIONAL CHECK OK.