January 27, 2014 - MDA provides additional support to US Air Force in the design of high-precision flight path safety system

For immediate release: January 27, 2014

MDA provides additional support to US Air Force in the design of high-precision flight path safety system Richmond, BC - MacDonald, Dettwiler and Associates Ltd. ("MDA" or the "Company") (TSX: MDA), a global communications and information company, announced today it has signed a contract valued at US$4.9 million under its Indefinite Delivery/Indefinite Quantity (IDIQ) agreement with the U.S Air Force (USAF), to continue operational support and further enhance the flight path safety system that aids the design of airport approach and departure flight paths. Originally announced in February 2012, the value of contracts awarded to-date under the IDIQ agreement totals approximately US$13.8 million.

The original flight path safety system developed by MDA for USAF has been deployed worldwide since 2004, focused on the design of flight paths for aircraft fitted with ground-based navigation equipment. This contract extension will provide an additional year of operational support along with enhancements that evolve system capability in the support of aircraft fitted with both ground-based and satellite-based navigation equipment.

About MDA

MDA is a global communications and information company providing operational solutions to commercial and government organizations worldwide.

MDA's business is focused on markets and customers with strong repeat business potential. In addition, the Company conducts a significant amount of advanced technology development.

MDA's well-established global customer base is served by more than 4,500 employees operating from 11 offices located in the United States, Canada, and internationally.

The Company's common shares trade under the symbol TSX:MDA.

Related Websites:
www.mdacorporation.com

Forward-Looking Statements
This release contains forward-looking statements and information, which reflect the current view of MacDonald, Dettwiler and Associates Ltd. ("MDA" or the "Company") with respect to future events and financial performance. The forward-looking statements in this regard include statements regarding the award of a government contract. Any such forward-looking statements are based on MDA's current expectations, estimates, projections and assumptions in light of its experience and its perception of historical trends. The factors and assumptions underlying the forward-looking statements in this release include contracts with any government agency not being terminated. Any such forward-looking statements are subject to a number of risks and uncertainties that could cause actual results to differ materially from current expectations. MDA cautions readers that should certain risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary significantly from those expected. The risks that could cause actual results to differ from current expectations include, but are not limited to: changes in government priorities, mandates, policies, funding levels, contracts and regulations; failure of third parties and subcontractors; and failure of systems to meet performance requirements.

For additional information with respect to certain of these risks or factors, plus additional risks or factors, reference should be made to the Company's continuous disclosure materials filed from time to time with Canadian securities regulatory authorities, which are available online under the Company's profile at www.sedar.com or on the Company's website at www.mdacorporation.com.

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