As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DESCENT, PILOT ADJUSTED CABIN CONTROLLER AND VERY SHORTLY AFTER HEARD A BANG FOLLOWED BY A DECOMPRESSION. DROPPED DOWN TO THEIR CLEARED ALTITUDE AND LANDED UNEVENTFULLY. UPON FURTHER INSPECTION IT WAS DISCOVERED THAT THE FRESH AIR DISTRIBUTION HOSE ON THE EVAPORATOR SLIPPED OFF.