As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: FIRST CLASS LAVATORY SMOKE ALARM CLIMBING THRU 30,000 FT. PASSENGER COMING OUT OF LAVATORY. LAVATORY CHECKED, NO THREATS INDICATED. ACCOMPLISHED VISUAL INSPECTION OF LAVATORY AND PERFORMED A LAVATORY SMOKE DETECTION SELF-TEST. TESTED OK PER AMM 26-14-00.