As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAX - INFLIGHT SAN-DFW. CREW REPORTED RIGHT PACK FAILED AND LEFT PACK WAS ALREADY ON PLACARD. EMERGENCY DECLARED FLIGHT DIVERTED LAX LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED RIGHT AIR CYCLE MACHINE COOLING DUCT. SYSTEM GROUND CHECK NORMAL OPERATION.