MDA To Provide Advanced Technology Solution To Inspect Nuclear Power Plant

Richmond, B.C. - MacDonald, Dettwiler and Associates Ltd. (TSX: MDA), a provider of essential information solutions, announced today that it received a contract from Ontario Power Generation (OPG) to supply an advanced technology solution to remotely inspect and potentially service components within a human inaccessible area of the Candu reactors of the Pickering A Nuclear Generating Station in Ontario.

The components in question are in a location called the calandria vault, which directly houses the Candu reactor vessel and which contains sufficiently high radiation fields that personnel cannot enter. OPG will use the MDA solution to safely inspect within these vaults without exposure to humans. In the future, the solution may be expanded to carry out certain component refurbishing activities as well. MDA will also provide training and support for this project.

Paul Cooper, general manager of MDA's Brampton Operations said, "our objective to apply the knowledge and capabilities gained by operating in space to terrestrial solutions that operate in equally hazardous environments, is further advanced with this project."

About MDA

MDA provides advanced information solutions that capture and process vast amounts of data, produce essential information, and improve the decision making and operational performance of business and government organizations worldwide.

Focused on markets and customers with strong repeat business potential, MDA delivers a broad spectrum of earth and space based information solutions, ranging from complex operational systems, to tailored information services, to electronic information products.

MDA employs more than 3,000 people in locations across the United States, the United Kingdom, and Canada. The Company's common shares trade on the Toronto Stock Exchange under the symbol TSX:MDA.

Related Websites:
www.mdacorporation.com
www.opg.com

Forward-Looking Statement

This release contains forward-looking statements and information, which reflect the current view of MacDonald, Dettwiler and Associates Ltd. with respect to future events and financial performance. Any such forward-looking statements are subject to risks and uncertainties and MDA's actual results of operations could differ materially from historical results or current expectations. Additional information on these and other potential factors that could affect MDA's financial results are detailed in documents filed from time to time with the applicable Canadian securities regulatory authorities.

The Toronto Stock Exchange has neither approved nor disapproved the form or content of this release.