What was found
CABIN PRESSURIZATION OUTFLOW VALVE WILL NOT CLOSE IN MANUAL MODE. REPLACED FAULTY OUTFLOW VALVE ACTUATOR, OPS CK NORMAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CABIN PRESSURIZATION OUTFLOW VALVE WILL NOT CLOSE IN MANUAL MODE. REPLACED FAULTY OUTFLOW VALVE ACTUATOR, OPS CK NORMAL.