As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - DURING TAKEOFF, CREW REPORTED STRONG BURNING RUBBER SMELL IN CABIN AND COCKPIT. AIRCRAFT AIR INTERRUPTED AND RETURNED AND LANDED DFW WITHOUT FURTHER INCIDENT. REPLACED NR 1 ENGINE AND ACCOMPLISHED PACK BURN OUT. GROUND RAN ENGINES AT TAKEOFF WITH NO LEAKS OR SMELL NOTED. SYSTEM GROUND CHECKED NORMAL OPERATIONS. (M)