What was found
AIRCRAFT WILL NOT PRESSURIZE IN FLIGHT. FOUND MANUAL CONTROL VALVE 'OPEN' DURING GROUND CHECK. REPOSITIONED VALVE TO 'CLOSED'. (X)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT WILL NOT PRESSURIZE IN FLIGHT. FOUND MANUAL CONTROL VALVE 'OPEN' DURING GROUND CHECK. REPOSITIONED VALVE TO 'CLOSED'. (X)