As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AIRCRAFT EXPERIENCED SMOKE IN CABIN, WHEN NR 2 BLEED AIR WAS SELECTED ON. WHEN THE BLEED WAS SELECTED OFF THE SMOKE DISSIPATED. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE NR 2 ENGINE WAS LEAKING OIL PAST THE SEAL INTO THE LOW PRESSURE IMPELLER AREA ALLOWING OIL INTO THE BLEED AIR SYSTEM. THE ENGINE WAS REPLACED.