As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SPS - INFLIGHT COS-DFW. WHILE DESCENDING FLIGHT LOST BOTH A/C PACKS. EMERGENCY DECLARED, LANDED SPS WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. FOUND OPEN COIL ON RELAY R2-279. REPLACED AIR CONDITIONING THERMOSTAT RELAY R2-279. REPLACED BOTH COALESCER BAGS IN WATER SEPARATOR. SYSTEM GROUND CHECK NORMAL OPERATION.