As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FORWARD FA REPORTED THIN SMOKE ON THE GALLEY FLOOR DURING THE TAKEOFF ROLL. THE AFT FA ALSO REPORTED VERY THIN SMOKE IN THE AFT CABIN DURING THE SAME TIME. THE FORWARD FA SUSPECTED IT ORIGINATED FROM THE GALLEY LIGHTS AND TURNED THEM OFF FOR THE DURATION OF THE FLIGHT. THE SMOKE DID NOT RETURN ONCE THE LIGHTS WERE TURNED OFF. (FLIGHT 3187 FILED OPEN)