As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAVATORY SMOKE EICAS MESSAGE. FA REPORTS BOTH AFT LAV SMOKE ALARM ACTIVATED. MID CABIN ELECTRICAL SMOKE ODOR REPORTED ALSO. PERFORMED FIM TASK 26-14 FAULT TREE 806. SYS TEST OK FOR ALL LAV SMOKE DETECTION SYSTEMS. PERFORMED SMOKE DETECTION SELF TEST IN ALL LAVS REF TASK 26-14-00-710-801-006. TEST PASSED.