As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 2006 DURING TAXI OUT, LAVATORY SMOKE ALARM ACTIVATED FOR 1 MINUTE, THEN RESET BY FLIGHT ATTENDANT. FLIGHT ATTENDANT REPORTED SMOKE/FUMES ODOR AND HAZE/SMOKE IN CABIN NO FIRE/SMOKE IN LAVATORY. RETURNED TO GATE. REMOVED AND REPLACED NR 2 ENGINE NL PROBE AND O-RINGS. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.