As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INBOUND TO DTW, CREW RECEIVED A LAV SMOKE WARNING AND VERIFIED INDICATION ONLY. CLEANED AND OPS CHECKED GOOD. REMOVED SMOKE DETECTOR. INSPECTED SMOKE DETECTOR AND WIRING HARNESS. NO DEFECTS NOTED. REINSTALLED SMOKE DETECTOR IAW MAL AMM 26-13-10-04. OPS CHECK GOOD IAW MAL AMM 26-13-00.