As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FA REPORTS AFT LAV SMOKE DETECTOR SHOWS RED LIGHT CONTACTED MAINT, THEY ADVISED TEST WITH FORWARD FA PANEL- DID NOT RESET AND DID NOT TRIGGER MASTER WARNING OR EICAS. REMOVED FROM SERVICE. C/W E175 FIM TASK 26-14-00-810-802-A. NO FAULT CODES. PERFORMED OPERATIONAL TEST OF THE LAVATORY SMOKE DETECTOR IAW AMM TASK 26-14-01-700-801-A. OPS TEST GOOD, NO OTHER DEFECTS NOTED. NO PARTS REPLACED. AIRCRAFT RETURNED TO SERVICE.