SRG requirement for LCDs on Operational Positions
Prior to the introduction of any Thin Film Transistor Liquid Crystal Displays (TFT-LCD) on an operational position, there is an SRG requirement for a full safety analysis to have taken place prior to the replacement of any CRT displays.
ATSIN Number 18 of 19th August 2002 refers.
However, TFT-LCDs can be used on non operational positions, i.e. where the displays are not being used for the purpose of separating aircraft. Flat screen BARCOs will start to make an appearance on "non operational" positions in the near future.