As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 7324 - IAD-ROC - DURING TAKEOFF, AIRCRAFT MADE AN UNSCHEDULED LANDING DUE TO SMOKE IN CABIN. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND GROUND RAN AIRCRAFT AND CHECKED FLOWS. MAINTENANCE COULD NOT DUPLICATE PROBLEM. OPS CHECK OK. AIRCRAFT WAS RELEASED AND RETURNED TO SERVICE. (M)