As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF SMOKE IN THE CABIN, FOLLOWED BY LAVATORY SMOKE EICAS WARNING. COMPLIED WITH ETN EM 72-034 & FIRST STEPS OF ENG GROUP WORK SCOPE. ALTHOUGH INITIAL TESTS PRODUCED A ODOR SUBSEQUENT RUNS IAW ETN EM 72-034 & FIM TASKS PRODUCED NO ODOR. ALL FIM TASKS HAD NO DEFECTS NOTED. COMPLIED WITH EMB FIM TASK 34-22-00-810-835-A. NO DEFECTS NOTED.