What was found
FLIGHT 5775 - AT FLIGHT LEVEL 340 - CABIN ALT CAUTION MESSAGE APPEARED WITH RAPID INCREASING CABIN PRESSURE THROUGH 9000 FEET. CABIN ALTITUDE PRESSURE STABILIZED AFTER EMERGENCY DESCENT. REMOVED AND REINSTALLED CARGO SEAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLIGHT 5775 - AT FLIGHT LEVEL 340 - CABIN ALT CAUTION MESSAGE APPEARED WITH RAPID INCREASING CABIN PRESSURE THROUGH 9000 FEET. CABIN ALTITUDE PRESSURE STABILIZED AFTER EMERGENCY DESCENT. REMOVED AND REINSTALLED CARGO SEAL.