What was found
IAH - FLIGHT 2160, THE FLIGHT ATTENDANT REPORTED THAT A HAZE DEVELOPED IN THE CABIN FOLLOWED BY A MOMENTARY LAV SMOKE INDICATION. THE ACFT RETURNED TO IAH WHERE IT LANDED WITHOUT INCIDENT. MX R&R THE NR 2 ENGINE, OPS CHECKED WITH NO DEFECTS, AND THE ACFT WAS APPROVED FOR RETURN TO SERVICE.