What was found
FLT#204, BDA-BOS. (AIRCRAFT DECLARED AN EMERGENCY AND PERFORMED AN AIR TURN ABCK TO BDA) 'ANOMALOUS FUEL DECREASE FROM LEFT MAIN TANK AFTER T.O. RTB TXKF, NO FUEL LEAKS NOTED BY CRF ( ECAM FUEL PAGE INDICATIONS 1) I) FUEL QUANTITY INNER TANK).' (SUPPLEMENTAL TO FOLLOW)