What was found
FLIGHT 9757 - RECEIVED CABIN ALTITUDE MESSAGE AT 24000 FT MANUAL CONTROL WOULD NOT WORK. INITIATED EMERGENCY DESCENT. LANDED WITHOUT INCIDENT. REPLACED CABIN PRESSURE SELECTOR PANEL. NO FURTHER DEFECTS.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLIGHT 9757 - RECEIVED CABIN ALTITUDE MESSAGE AT 24000 FT MANUAL CONTROL WOULD NOT WORK. INITIATED EMERGENCY DESCENT. LANDED WITHOUT INCIDENT. REPLACED CABIN PRESSURE SELECTOR PANEL. NO FURTHER DEFECTS.