As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: LAVATORY SMOKE INDICATION LIGHT WITH ORAL WARNING AFT LEFT LAVATORY NO SMOKE OR FIRE DETECTIVE BY FLIGHT ATTENDANT. OPERATIONS CHECKED AFT/LEFT LAVATORY SMOKE DETECTOR PER B737 AMM 26-14-00-710-802. NO FAULT FOUND.