What was found
(CAN) UNABLE TO PRESSURIZE AIRCRAFT AFTER TAKEOFF. MAINTENANCE REVEALED SKIN EXTRACT VALVE IN OPEN POSITION AND DEACTIVATION SWITCH OFF POSITION. EXTRACT VALVE REACTIVATED AND OPERATIONALLY CHECKED SERVICEABLE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(CAN) UNABLE TO PRESSURIZE AIRCRAFT AFTER TAKEOFF. MAINTENANCE REVEALED SKIN EXTRACT VALVE IN OPEN POSITION AND DEACTIVATION SWITCH OFF POSITION. EXTRACT VALVE REACTIVATED AND OPERATIONALLY CHECKED SERVICEABLE.