As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMBOUT, THE AIRCRAFT WOULD NOT SHIFT FROM GROUND MODE TO FLIGHT MODE. AIRCRAFT WAS UNABLE TO PRESSURIZE AND NOSE WHEEL WAS STEERABLE. FLIGHT RETURNED TO MSP AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND NOSE LANDING GEAR STRUT FLAT. REPLACED SCHRADER VALVE AND SERVICED STRUT TO PROPER LEVELS.