What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND TEH AIRCRAFT RETURNED TO DFW: AFTER TAKEOFF FLIGHT DECK AND FORWARD PACK EXIT TEMPERATURE EXCEEDED 185 DEGREES. FLIGHT DECK AND FORWARD CABIN TEMPERATURE QUICKLY REACHED 90 DEGREES. THE AIRCRAFT LANDED SAFELY AT DFW WITHOUT FURTHER INCIDENT. MAINTENANCE ACCOMPLISHED THE PACK SYSTEM TEMPERATURE CONTROL TEST PER AMM 21-61-00 WITH NO ISSUES OR FAULTS NOTED. MAINTENANCE ALSO RAN THE PACKS WITH THE ENGINE AND APU BLEEDS WITH NO ISSUES OR FAULTS NOTED.