As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE ALARM FORWARD LAVATORY CAME ON. NO SMOKE DETECTED AND LAV WAS NOT OCCUPIED AT THE TIME. DEFERRED SMOKE/FIRE ALARM AT FWD LAV PER MEL 26-13 WITH AUTH NBR 02-433D-C. DISCONNECTED POWER CONNECTOR. REPLACED LAV F1 SMOKE DETECTOR. OPS CHECK NORMAL.