As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ABORTED TAKEOFF DUE TO A LAV SMOKE WARNING. LAVATORY WAS INSPECTED BY THE FIRE DEPARTMENT WITH THERMAL SENSORS. NO EVIDENCE OF FIRE OR SMOKE FOUND. DEFERRED LAV SMOKE DETECTION SYSTEM. R&R LAV SMOKE DETECTOR IAW AMM 26-11-01-000/400-801, OPS CHECK GOOD.