As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUTO PRESSURIZATION INOP. RETURNED TO PSP. REMOVED ELECTRO PNEUMATIC OUTFLOW VALVE, INSPECTED SHAFT FOR STRAIGHTNESS AND OHMED TORQUE MOTOR. ALL CHECKED GOOD. REINSTALLED VALVE. OHMED AND MEGGED WIRING FROM CONTROLLER TO VALVE, CHECKS OK. REPLACED RELAY K0127 AND INSTALLED SERVICEABLE ELECTRONIC PRESSURIZATION CONTROLLER. PERFORMED TEST FLIGHT AND CHECKS OK.