As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FORWARD LAVATORY SMOKE DETECTOR ACTIVATED MOMENTARILY IN FLIGHT. NO PHYSICAL ABNORMALITIES, HEAT, SMOKE, OR FUMES WERE DETECTED. PERFORMED AN OPERATIONS CHECK ON THE FWD LAVATORY SMOKE DETECTOR IAW AMM 26-16-00. NO MSGS PRESENT & SMOKE DETECTOR IS OPERATIONAL.