As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMBOUT EICAS WARNING "LAV SMOKE" ACCOMPANIED BY FLIGHT ATTENDANT GALLEY HORN. AFTER INSPECTION BY FLIGH ATTENTDANT FOUND NO INDICATION OF SMOKE. REMOVED DEBRIS AROUND SMOKE DETECTOR IN LAV BY CLEANING GRND RAN W/CREW NO FAULTS NOTED PERF SMOKE IAW EMB 145AMM 26-14-000 NO DEFECTS