What was found
FLT 366 - PIT-STL - DURING CRUISE AT FL 210, CABIN ALTITUDE CLIMBED TO 11,000 FEET. STOPPED CABIN AT 12,000 FEET, DESCENDED TO 10,000 FEET. CABIN PRESSURIZATION WORKED IN MANUAL MODE. REPLACED OUTFLOW VALVE ACTUATOR. (M)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLT 366 - PIT-STL - DURING CRUISE AT FL 210, CABIN ALTITUDE CLIMBED TO 11,000 FEET. STOPPED CABIN AT 12,000 FEET, DESCENDED TO 10,000 FEET. CABIN PRESSURIZATION WORKED IN MANUAL MODE. REPLACED OUTFLOW VALVE ACTUATOR. (M)