THE Railway Heritage Designation Advisory Board (RHDAB), the body which recommends vehicles, artefacts and records for designation and preservation, has taken the decision to replace No. 313201, which is due for withdrawal later this year, with Network Rail test unit No. 313121.
The pioneer ‘313’ was originally designated as it was the first production ‘PEP’ unit to be construc- ted, although, having undergone a refurbishment when it was transferred from London Overground to Southern, it lost a lot of its original features in 2010. Explaining the decision by the RHDAB to instead designate the Network Rail set, a National Railway Museum spokesperson said: “The board became aware of a unit (313121) which retained its original 1970s seating and other internal features and is equipped with both overhead power and third rail current collection equipment. Consequently, the decision was made to change the designated unit as it best represented the original condition of the Class 313.”