For immediate release: March 31, 2003

MDA to Provide Information Products for Aviation Safety to Jeppesen

Richmond, B.C. - MacDonald, Dettwiler and Associates Ltd. (TSX: MDA) announced today that the company’s Geographic Information Products Group has signed a multi-year contract with Jeppesen, a subsidiary of Boeing Commercial Aviation Services, to provide a geographic information database for hundreds of airports around the world.

The first phase of the 5-year contract requires MDA to deliver the initial airport information over the next 12 months. It includes the option for MDA to provide regular data updates and add new airports over the next four years.

MDA will use DigitalGlobe’s high resolution Quickbird satellite imagery to produce the information, including positions of runways and taxiways at 289 airports, so that airlines can increase aviation safety and provide minimum cost routing from touchdown to gate.

Peter Louis, Vice-President of MDA, said: “We’re particularly excited about the synergy between MDA’s Information Systems group and Information Products group. Together, they’re bringing an unbeatable combination to the field of aviation safety.”

Jeppesen is recognized as the world’s leading supplier of flight information, flight planning services, aviation weather services, maintenance information and aviation training systems. Jeppesen is a subsidiary of Boeing Commercial Aviation Services, a unit of Boeing Commercial Airplanes.

Related Websites:
www.mdacorporation.com
www.jeppesen.com



For more information, please contact:

Ted Schellenberg
Media Relations
MacDonald Dettwiler
Telephone: (604) 231-2215
E-mail: teds@mda.ca