As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
KTTN - KCGF THE CABIN ALTITUDE WAS NOTED AS UNUSUALLY HIGH. THE CABIN RATE CONTINUED TO CLIMB AS THE AIRCRAFT DESCENDED AND THE CABIN ALTITUDE WARNING HORN SOUNDED. THE CREW DECLARED AN EMERGENCY AND PERFORMED AN EMERGENCY DESCENT. THE AIRCRAFT LANDED WITHOUT INCIDENT.