As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE DETECTOR IN RIGHT AFT LAV WENT OFF ON SHORT FINAL. PULLED ALL LAV C/B. CREW AND PASSENGERS REPORTED ELECTRICAL SMELL. C/B WAS PULLED FOR WATER HEATER AND ALARM STOPPED. INSPECTED AREA, FOUND OK. FORWARD WATER HEATER TO MCO/PLAC PER MEL 25-00-12 C/B CLAMPED.