As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: SMOKE LAVATORY CAUTION ON ENGINE INDICATING AND CREW ALERTING SYSTEM AND SMOKE DETECTOR AURAL ALERT LAVATORY 3R-1 AND 3R-2 WITH NO SMOKE. : FAULT ISOLATION MANUAL TASK 26-14-00-810-808, OBSERVED NO MAINTENANCE ACTION IS NECESSARY, LAVATORY SMOKE DETECTION OPERATIONAL TEST PER AMM 26-13-00-710-801 CARRIED OUT AND PASSED SUCCESSFULLY. NO ACTIVE PRESENT FAULTS.