As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOST CABIN PRESSURIZATION AT FL 310. CREW PERFORMED AN EMERGENCY DESCENT TO FL 190 WHERE THEY WERE ABLE TO REGAIN CONTROL OF CABIN PRESSURE WHEN "CROSSFEED VALVES" WHERE CLOSED. ANTI-ICE WAS FULL ON, CABIN ALTITUDE REACHED 11,000 FEET AND MASKS DID NOT DEPLOY. LANDING AT AUS WAS WITHOUT INCIDENT. MAINTENANCE CHECKED FOR VESSEL LEAKS AND PERFORMED BITE ON THE PRESSURE CONTROLLER, BOTH HAD NO TROUBLE FOUND.