As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - FLT 817 - DURING TAKEOFF, FLT ATTENDANT REPORTED AN UNUSUAL ODOR WITH SMOKE IN THE CABIN. FLIGHT AIR INTERRUPTED, RETURNED DFW AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE TROUBLESHOT AND FOUND THE LEFT ACM SEIZED. MAINTENANCE REPLACED LEFT ACM. SYSTEM OPERATED NORMAL WITH NO LEAKS NOTED DURNG LEAK CHECK. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)