As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: MOMENTARY LAVATORY SMOKE WARNING-3 SECONDS THEN CLEARED. NO FIRE IN LAVATORY OR PASSENGER VAPING/SMOKING. MAINTENANCE ACCOMPLIHSED TSM 26-17-00-810-804 WITH NO SMOKE WARNING REPORT FAILURES OR CLASS 3 FAULTS. PERFORMED SMOKE SYSTEM TEST AND ALL TEST PASSED WITH NO FAULTS FOUND.