What was found
DURING PREFLIGHT, THE LAVATORY SMOKE DETECTOR FAILED TO TEST. MAINTENANCE PERFORMED OPERATIONAL CHECKS OF THE LAVATORY SMOKE DETECTION SYSTEM AND COULD NOT DUPLICATE PROBLEM.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING PREFLIGHT, THE LAVATORY SMOKE DETECTOR FAILED TO TEST. MAINTENANCE PERFORMED OPERATIONAL CHECKS OF THE LAVATORY SMOKE DETECTION SYSTEM AND COULD NOT DUPLICATE PROBLEM.