What was found
AT CRUISE, CABIN ALTITUDE CLIMBED TO 10,000 FEET. UNABLE TO CONTROL IN MANUAL. REPLACED OUTFLOW VALVE. (M)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AT CRUISE, CABIN ALTITUDE CLIMBED TO 10,000 FEET. UNABLE TO CONTROL IN MANUAL. REPLACED OUTFLOW VALVE. (M)