As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: DURING DESCENT SMOKE DETECTOR IN 1ST CLASS LAVATORY ACTIVATED; HOWEVER, NO SMOKE OR FIRE WAS PRESENT. SMOKE DETECTOR WAS RESET. **SUPPLEMENTAL REPORT FOR AALA202306053333: REPLACED LAVATORY SMOKE DETECTOR PER AMM 26-14-01-000-801. ACCOMPLISHED SATISFACTORY OPERATIONAL TEST.** (CLOSED)