MATA officers and directors are industry leaders who provide guidance and counsel to the membership.  The current officers and board of directors are shown with their term limits.

President - Bill Mavencamp

Vice President - Mark Plummer

Secretary - Christa Restad

Treasurer - Nancy Grazzini-Olson


Nancy Grazzini-Olson is the President of Thunderbird Aviation, A Full Service Fixed Base Operation (FBO) which provides Charter, Maintenance, Fueling, and a 141 Flight Training School. Established in 1962, Thunderbird is located at both Flying Cloud and Crystal Airport.


Nancy is also the President of Academy College, a 4-year Private College offering Associate and Bachelor’s degree programs in Business, Computer Technology, Medical/Health Services and Aviation. The Aviation degrees are in Professional/Commercial Pilot Training, Aviation Business and an FAA approved Aircraft Dispatch Training program. The College was established in 1936 and is located in Bloomington. Their flight program is provided by Thunderbird Aviation.


Nancy has served both past and currently as an Officer for the National Air Transportation Association, the Minnesota Aviation Trades Association and the Minnesota Career College Association. She has served on several Flight Training Promotional Boards, including the National and Minnesota “Learn to Fly” and “Be A Pilot” programs.

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Butch Detjen



Michael Beard



Joe LaRue



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