As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT NR 7956 - DTW - STRONG ODOR OF SMOKE IN COCKPIT AND CABIN. VISUAL INDICATION OF SMOKE IN COCKPIT AND FROM ROW 14 TO THE BACK. MAINTENANCE INSPECTED THE AIRCRAFT FOR THE SOURCE OF THE SMOKE AND DETERMINED THAT THE NR 1 COOLING TURBINE HAD FAILED. MAINTENANCE REMOVED AND REPLACED THE NR 1 COOLING TURBINE AND OPS CHECKED WITH NO FURTHER DEFECTS NOTED.