FEA-S GBRf/Metronet yellow w/Salmon modules - Twin Pack 1FEA S GBRf Metronet yellow w Salmon modules (twin pack) 640906 & 640915 (Pack 1) The FEA design first appeared in early 2003 with 60ft FEA B twin container flats built by Greenbrier Europe at widnica for Freightliners Intermodal business. Around 18 months later, single unit variantslargely intended for infrastructure trafficentered service. All were mounted on Y33 bogies and outwardly similar, regardless of TOPS suffix, apart from Network Rails later