As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TUL - FLIGHT 2752, ON DESCENT INTO TUL THE CREW RECEIVED A PACK 1 FAIL AND PACK 2 INOP MESSAGE. THE CREW PERFORMED AN EMERGENCY DESCENT AND THE AIRCRAFT LANDED AT TUL WITHOUT INCIDENT. MAINTENANCE INSPECTED THE AIRCRAFT AND SECURED A LOOSE CLAMP ON THE LEFT HANDPACK HEAT EXCHANGER, OPERATIONALLY & LEAK TESTED WITH NO DEFECTS. THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.