As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED. RT AFT LAVATORY SMOKE LIGHT ILLUMINATED IN COCKPIT. PASSENGER IN LAVATORY AT THE TIME, FLIGHT ATTENDANTS VERIFIED NO SMOKE AND NO EVIDENCE OF VAPING OR SMOKING. ACCOMPLISHED LAVATORY SMOKE DETECTOR TEST, IAW AMM 26-14-00. OPERATIONS CHECK GOOD.