As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INTERMITTENT LAV SMOKE DETECTOR ACTIVATION AT 3 L LAVATORY. NO SMOKE DETECTED. TROUBLESHOT IAW A321 TSM 26-17. SMOKE WARNING REPORT FOUND 2 LAV SMOKE WARNINGS. NO CLASS 3 FAULTS. CLEARED EXCESSIVE DUST FROM DETECTOR. NO PREVIOUS HISTORY. SUSPECT SPURIOUS FALSE ALARM. A/C OK FOR SVC. (LP# 8934630)