What was found
RIGHT EMERGENCY PRESSURIZATION VALVE WOULD NOT CLOSE AFTER ENGINE START, WAS INTERMITTENT PROBLEM. APPEARS THAT THE VALVE HAS NO LUBRICATION AND STICKS.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
RIGHT EMERGENCY PRESSURIZATION VALVE WOULD NOT CLOSE AFTER ENGINE START, WAS INTERMITTENT PROBLEM. APPEARS THAT THE VALVE HAS NO LUBRICATION AND STICKS.