As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT LEFT LAV SMOKE DETECTOR SOUNDED ON APPROACH AND LASTED FOR ABOUT 30 SECONDS. FLIGHT ATTENDENT REPORTED AN ELECTICAL SMELL THAT LASTED ABOUT TWO MINUTES (1 MINUTE BEFORE ALARM THROUGH ABOUT 30 SECONDS AFTER). C/W NO GO ODI PREVENTION PROGRAM ATA 2172 REF LOG 0626209. NO TROUBLE WAS FOUND AND SMOKE DETECTOR WAS REPLACED.