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 D SMOKE DETECTOR AURAL ALERT/SMOKE INDICATION WENT OFF TWICE, AT THE GATE LAX AND IN FLIGHT AFTER 4 HOUR ELAPSED. MAINTENANCE ACCOMPLISHED FIM 26-17-00, LAVATORY D SMOKE DETECTOR TEST OK NO FAULTS NOTED. :