What was found
ABI - INFLIGHT CREW REPORTED ELECTRICAL SMELL AND HAZE IN CABIN. ODOR NOTICED IN BOTH FRONT AND REAR OF CABIN BY BOTH PASSENGERS AND CREW. RETURNED TO ABI AND LANDED WITHOUT INCIDENT. ACCOMPLISHED MAINTENANCE CHECK MANUAL 21-96-01 WITH NO FAULTS NOTED. COULD NOT DUPLICATE SMOKE OR ODOR. CHANGED COALESCER BAGS AS PRECAUTION. SYSTEM GROUND CHECKED NORMAL OPERATION.