As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF AND CLIMB, HEAVY SMOKE ENTERED THE COCKPIT AND CABIN. FLIGHT CREW TURNED OFF BOTH PACKS AND SMOKE BEGAN TO DISSIPATE. FLIGHT CREW RETURNED TO DEPARTURE AIRPORT MAKING AN UNEVENTFUL LANDING. MAINTENANCE REPLACED ENGINE NR 2 AND PERFORMED PACK BURNOUT PROCEDURES.