As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ROTATION, SMOKE ENTERED THE COCKPIT AND CABIN. FLIGHT CREW DECLARED AN EMERGENCY AND RETURNED TO DEPARTURE AIRPORT PERFORMING AN UNEVENTFUL LANDING. MAINTENANCE FOUND OIL IN NR 1 ENGINE 8TH STAGE BLEED. REPLACED THE NR 1 ENGINE. OPERATIONAL CHECK GOOD.