HC Deb 05 February 1998 vol 305 c724W
Mrs. Dunwoody

To ask the Secretary of State for the Environment, Transport and the Regions when he expects the completion of the NATS research to determine the accuracy of Mode C data when aircraft are in close proximity. [27011]

Ms Glenda Jackson

I am advised by National Air Traffic Services Ltd. that they expect to complete this research in April 1998.