As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAVATORY SMOKE EICAS INDICATION REPORTED SHORTLY AFTER TAKEOFF. SMOKE FILLING CABIN FROM LAVATORY AREA AND FROM THE VENTS IN CABIN. FOUND NR 2 ENGINE OIL SYSTEM LEAKING. R & R NR 2 ENGINE IAW TASK CARD 6271001 WITH OPS AND LEAK CHECKED SUCCESSFUL. PERFORMED CONDITIONED AIR DUCT-OIL DECONTAMINATION IAW AMM 21-20-00 WITH NO SIGNS OF SMOKE. ACFT WAS APPROVED FOR RETURN TO SERVICE.