What was found
DURING INITIAL CLIMB, LAV SMOKE WARNING ON EICAS. F/A CONFIRMED THERE WAS SMOKE IN LAV. EMERGENCY WAS DECLARED WITH ATL ATC AND AC SAFELY RETURNED TO FIELD. AC WAS FERRIED WITH BLEEDS OFF. MAINT FOLLOWED FIM FOR OIL ODOR, CAN NOT DUPLICATE SMELL, PULLED NOSE CONES OFF AND FOUND NO LEAKS AND BOROSCOPED INTAKES AND IGV'S AND FOUND NO FAULTS. CUSTOMER SERVICE MANIFOLD WAS PULLED AND NO ODOR WAS NOTED. AC WAS FLOWN ON TEST FLIGHT, FOUND SLIGHT ODOR TO BE EVIDENT. MAINT ISOLATED INDIVIDUAL BLEED SYS IN HIGH AND LOW POWER CLIMBS AND DIVES WITH NO LAV SMOKE INDICATION. MAINT PERFORMED ALL FIM TASKS AND COULD NOT FIND ANY DEFECTS. AC WAS RETURNED TO SERVICE.