What was found
DURING CLIMB, UNABLE TO CONTROL CABIN PRESSURIZATION IN AUTO OR MANUAL MODE. AIRCRAFT RETURNED TO TPA AND LANDED WITHOUT INCIDENT. REPLACED RIGHT PACK AIR SHUTOFF VALVE. PERFORMED PRESSURIZATION CHECK. CHECKED OK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING CLIMB, UNABLE TO CONTROL CABIN PRESSURIZATION IN AUTO OR MANUAL MODE. AIRCRAFT RETURNED TO TPA AND LANDED WITHOUT INCIDENT. REPLACED RIGHT PACK AIR SHUTOFF VALVE. PERFORMED PRESSURIZATION CHECK. CHECKED OK.