As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - FLT NR 3816 - INBOUND INTO DFW, CREW SMELLED SMOKE IN THE COCKPIT, COMPLIED WITH EMERGENCY PROCEDURES AND NOTIFIED CFT. LANDED WITHOUT FURTHER INCIDENT. RAN ALL SYSTEMS AND FOUND FAULT ON THE NR 1 RECIRC FAN. REMOVED AND REPLACED NR 1 RECIRC FAN. NO FURTHER DEFECTS NOTED. AIRCRAFT RETURNED TO SERVICE. (M)