As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FWD LAV SMOKE ALARM ACTIVATED BY SMOKE. EXTINGUISHER DID NOT DISCHARGE AND TEMP INDICATOR STILL IN GRAY. CHECKED LAV FLUSH MOTOR, UNDER SINK AREA AND ALSO CHECKED NAPKIN HOLDER BY SIDEWALL LIGHT, NO BURNT WIRES OR SMOKE SMELL. AC OK FOR SERVICE.