March 3-6: National Defense Industrial Association 19th Annual National Logistics Conference and Exhibition. New Orleans. See www.ndia.org

March 6-9: Aeroexpo 2003. An aviation trade show and convention focusing on Latin American markets. Acapulco, Mexico. See www.aeroexpo.com

March 8-15: Institute of Electrical and Electronics Engineers Aerospace Conference. This annual conference is designed for aerospace experts, academia, military personnel and industry leaders. Big Sky, Mont. See www.aeroconf.org

March 12-13: European Airline Association's Regional Airline Conference. This event is slated to focus on issues related to industry growth opportunities. Maritim Hotel, Stuttgart, Germany. See www.eraa.org

March 13-15: Latin American Business Aviation Conference & Exposition. Hotel Transamérica, Sao Paulo, Brazil. See www.labace.org

March 17-19: 17th Annual Commercial Aviation Industry Suppliers Conference. This conference is designed for senior-level decision makers and analysts. St. Regis Hotel, Los Angeles. See www.speednews.com

March 18-21: Aircraft Maintenance & Reliability Seminar/Workshop. Transportation Consulting Corp. sponsors this event. Topics include failure and reliability fundamentals, organization of maintenance review boards, and dealing with aging aircraft. Crowne Plaza Hotel, Tampa, Fla. See www.tsccorp. com/mrseminar.htm

March 20-22: 14th Annual International Women in Aviation Conference. Cincinnati. See www.wiai.org

March 27-28: Defense Budget Conference. This conference is billed as a forum for defense budget information-gathering and understanding. Holiday Inn Rosslyn at Key Bridge, Arlington, Va. See www.aviationweek.com/ conferences/defmain.htm

April 2-3: 5th Annual Aerospace Outlook Conference. The mission of this conference is to provide a ''big-picture view'' of potential aerospace business. Carson Conference Center, Carson, Calif. See www.aerospaceoutlook.com

April 2-5: National Congress on Aviation and Space Education 2003. Sponsor: the Civil Air Patrol. Hilton Cincinnati Netherland Plaza, Cincinnati. See www.capnhq.gov

April 3-6: Second annual forum of the In2:In Thinking Network. Workshops offer ways to improve individual and organizational effectiveness with focus on better thinking for a better future. Los Angeles. See www.in2in.org

April 6-8: 7th Annual Helicopter Association of Canada's Convention and Exhibition. Hyatt Regency Hotel, Vancouver, British Columbia. See www.h-a-c.ca

April 7-10: U.S. Space Foundation National Space Symposium. This conference integrates commercial, civil and national-security sectors of space. The Broadmoor, Colorado Springs, Colo. See www.spacesymposium.org

April 9-12: Army Aviation Association of America's Annual Convention. This year's theme is ''The Army Aviation Branch: 20 years of history, transforming the future.'' Fort Worth, Texas. See www.quad-a.org

April 27-30: American Association of Airport Executives' 75th Annual Conference and Exposition. The event caters to airport executives interested in seeing equipment, products and services designed for daily operations at airports. Los Angeles, Calif. See www.airportnet.org/annual2003

April 29-30: Air Cargo Management Group's Air Cargo and Freighter Aircraft Workshop. A venue to learn about the growing air freight and express industry. Elliot Grand Hyatt Seattle, Seattle. See www.cargofacts.com

May 14-16: The 4th Annual Aviation Security Summit and Expo. This event features discussions on topics that confront the aviation security industry. Atlanta. See www.worldrg.com/aw314

May 15-17: Sea-Air-Space Exhibition 2003. The U.S. Navy League sponsors this event, which features in part advanced technologies and seminars on U.S. Navy and Marine Corps programs. Marriott Wardman Park Hotel, Washington, D.C. See www.sasexpo.org/2003

May 20-22: Aerospace Coatings Removal and Coatings Conference. The U.S. Air Force Corrosion Prevention and Control Office and the Southwest Research Institute in part sponsor this event. The conference features paint removal techniques, new technology updates and environmental regulations. Colorado Springs, Colo. See http: //dodconf.swri.org

The above listings are assembled for the convenience of readers of Boeing Frontiers only and do not constitute an endorsement by The Boeing Company. Times, dates and subject matter are subject to change or cancellation. If you have any items you wish to have considered for the Frontiers Calendar, please e-mail them to boeingfrontiers@boeing.com, or send them by regular mail to Boeing Frontiers magazine, 100 N. Riverside, MC: 5003-0983, Chicago, IL 60606-1596.