As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TAIL COMPARTMENT HIGH TEMPERATURE LIGHT & PRESSURIZATION FLOW LIGHT ILLUMINATED, RT & LT PACKS FAILED. EMERGENCY DECLARED FLIGHT RETURNED DFW LANDED WITHOUT INCIDENT. FOUND LT HAND AIR CYCLE MACHINE HOSE DUCT BLOWN & PERI SEALS COMING OFF AT FLOW CONTROL VALVE. REPLACED DUCT & PERI SEALS. SYSTEM GROUND CHECKED NORMAL.