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Senior Leadership Team

Since Duncan Aviation was founded in 1956, the members of the Duncan family have always been actively involved in leading the company. In addition to the family influence, the company’s leadership dynamic includes vice presidents and executive officers of Duncan Aviation who form the Senior Leadership Team. They pursue a constructive dynamic that allows them to strategically position the company for long-term success and respond to sudden changes in the industry.

The Senior Leadership Team is responsible for modeling and maintaining Duncan Aviation’s Leadership Values. Duncan Aviation leaders:

  • Truly care about each team member.
  • Support and develop each team member's career.
  • Listen and communicate continuously.
  • Encourage teamwork within and among all teams.
  • Focus on individual's strengths.
  • Celebrate success.
  • Provide timely and helpful feedback.
  • Focus on continuous improvement.
  • Have fun!

Doug Alleman

Vice President Customer Service

Doug Alleman

Vice President Customer Service
Lincoln, NE (LNK)
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Doug Alleman

Vice President Customer Service

Currently vice president of customer service in Lincoln, Nebraska, Doug joined Duncan Aviation 29 years ago as an A&P mechanic in the engine shop. Through the years, he's moved from team leader to tech rep to MPI shop supervisor to engine sales service rep. In 2008, Doug assumed the responsibilities of managing airframe service sales, and in 2009, he added managing the Regional Managers to his lengthening resume. He became the manager of customer service in early 2015, and Doug joined the senior management team in October of that year.

As vice president of customer service, Doug enjoys interacting with Duncan Aviations customers and working with the customer service teams in Lincoln, Nebraska, Battle Creek, Michigan, and Provo, Utah.

Doug and his wife Paula have been married for 28 years, raised their children and have one grandchild. They enjoy boating on their pontoon and going fishing in Canada every year that they can get away.

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Mark Cote

V.P., Duncan Aviation Parts Sales, Avionics, Accessories & Satellites

Mark Cote

V.P., Duncan Aviation Parts Sales, Avionics, Accessories & Satellites
Lincoln, NE (LNK)
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Mark Cote

V.P., Duncan Aviation Parts Sales, Avionics, Accessories & Satellites

Mark Cote is Duncan Aviation's Vice President of Duncan Aviation Parts Sales, Avionics, Accessories & Satellites. In this position he provides leadership to the production and service areas of aircraft Accessories, Avionics/Instruments Component Repair, Duncan Aviation Parts and Rotables Sales and the network of avionics satellite locations around the United States.

Mark joined Duncan Aviation in 1987 as an avionics technician, fixing navigation and communication equipment. Throughout his career with Duncan Aviation, Mark has held several positions including customer service representative, project manager, program manager and project manager team lead and coordinator. In 2006, he became the Vice President of Completions and Modifications. Mark assumed his current position in 2014.

Mark has an Associates of Applied Science Degree in Electronic Engineering Technology.

Mark and his wife have two children. Mark enjoys motorcycle riding, home improvement, staying fit and spending time with his family.

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Nate Darlington

Director of Modifications, Battle Creek

Nate Darlington

Director of Modifications, Battle Creek
Battle Creek, MI (BTL)
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Nate Darlington

Director of Modifications, Battle Creek

Nate started at Duncan Aviation in 2001 as a completions technician in the Interior department. He was promoted to shift supervisor in 2005 and became the department scheduler in 2006. He assumed his current responsibilities in 2009.

Nate enjoys working and interacting with customers. It is gratifying for him to be on the front end of refurbishment projects and see the transformation of aircraft through the eyes of customers.

Nate is married. He is a big sports fan and tries to spend as much time possible outdoors. He enjoys hunting, fishing and spending time with his family. He supports the United Way to help those in his community.

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Chad Doehring

Chief Operating Officer

Chad Doehring

Chief Operating Officer
Provo, UT (PVU)
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Chad Doehring

Chief Operating Officer

In 1994, Chad was hired at Duncan Aviation as an airframe mechanic. His work specialized in Falcons and Hawkers. During his time with the Airframe department Chad was promoted to shift supervisor and then to assistant manager. In 2004 Chad became Customer Service Manager in Lincoln and was in that role for seven years. Chad returned to the Airframe department in 2011 as Manager. Prior to Duncan Aviation, Chad worked for Northrop Grumman on the B2 bomber as a structure, hydraulic and flight test mechanic.

Chad holds an A&P license and Inspection Authorization (IA) from the FAA.

Chad enjoys spending time with his kids and attending their sports activities. He has four children; two daughters and two sons. Chad is involved in the Nebraska Business Aviation Association and supports the American Heart Association and Seward Recreational sports.

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Todd Duncan

Chairman

Todd Duncan

Chairman
Lincoln, NE (LNK)
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Todd Duncan

Chairman

Todd Duncan was named Chairman of Duncan Aviation in 2007. In his 30 years with the company, he has served many roles, including vice chair and president of Duncan Aviation component services. Todd has a passion for aviation and has been an active private pilot since 1987, holding instrument and multi-engine ratings. He is also passionate about the business aviation industry and believes in giving back. He is currently serving as Chair of the National Business Aviation Association's Associate Member Advisory Council. He has been a member of that council since 2015 and has also served as Chairman of the board of the National Air Transportation Association. Todd graduated from Nebraska Wesleyan University with a degree in business administration and studied in the Stanford Executive Program in 2007. Along with his wife, Connie, he is active in several philanthropic activities including the Nebraska Chamber of Commerce, Nebraska Wesleyan University and Southeast Community College Foundation.

Todd and Connie have twin sons and two daughters-in-law: Harrison and Brooke; and Paul Kent "P.K." and Katie. Todd enjoys many activities with his family including traveling, boating, scuba diving and snow skiing. Todd is an enthusiastic golfer and fisherman, an active Phish Phan and an avid traveler.

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Thomas Fischer

Vice President & General Counsel.

Thomas Fischer

Vice President & General Counsel.
Lincoln, NE (LNK)
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Thomas Fischer

Vice President & General Counsel.

As General Counsel, Tom Fischer represents the company, its owners, senior management and employees in legal matters involving customers, vendors, regulators, and legislators.

Tom joined Duncan Aviation in 2007 in his current position. Prior to Duncan Aviation, Tom was president of Spectrum Financial Services, Inc., an Omaha, Nebraska based company that provides insurance and other products and services to financial institutions. He also served as a senior officer and was on the board of directors for Spectrum's affiliated bank holding company, Great Western Bancorp and Spectrum Life Insurance Company; an Arizona based re-insurance company. Before moving to Spectrum, Tom served as vice president, general counsel and secretary for several major financial institutions including First National Lincoln Corp. in Lincoln, Nebraska and most recently, FirsTier Financial, Inc. in Omaha, Nebraska.

Tom has a Bachelors of Arts degree from the University of Nebraska, Omaha and Juris Doctorate from the University of Nebraska at Lincoln. He is a member of the Nebraska State Bar Association and the Lincoln Bar Association. He holds a Nebraska Real Estate Brokers License as well as several Nebraska insurance licenses and designations.

Tom and his wife Suzi have two grown children and four grandsons. Tom enjoys spending time with family, traveling, sports, and outdoor activities. Tom is a member of the International Air & Transportation Safety Bar Association (IAT53A) and a member of the Nebraska State Bar Association where he serves on the Corporate Counsel Executive Committee. He serves on the Board of Directors for the Nebraska State Bar Foundation, is a member of the Foundation's Endowment Committee, and serves on the University of Nebraska Medical Center Chancellor's Board of Counselors.

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Travis Grimsley

Director of Maintenance, Battle Creek

Travis Grimsley

Director of Maintenance, Battle Creek
Battle Creek, MI (BTL)
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Travis Grimsley

Director of Maintenance, Battle Creek

In 2019, Travis Grimsley was named Director of Maintenance for Airframe Services at the Duncan Aviation facility in Battle Creek, Michigan. He's also now a part of the Duncan Aviation Senior Management Team.

In 2005, Travis joined the Duncan Aviation team as a Line Services Representative, and he transitioned to Manager of Customer Service in 2016. The common thread in all of his positions at Duncan Aviation has been his genuine desire to provide a positive environment for customers and team members.

When he was growing up, his father was an airline mechanic at Northwest Airlines in Detroit, and he inspired Travis to pursue a career in the aviation industry. Travis earned his pilots license when he was 21 years old, and he earned a Bachelors degree in Business from Western Michigan University in 2012. He feels fortunate to have been able to make a living in working in a field he's always been so fond of.

Travis and his wife Dawn have three children, and in his spare time, they going skiing and boating and travel to Northern Michigan to enjoy the outdoors.

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Jamie Harder

Chief Financial Officer

Jamie Harder

Chief Financial Officer
Lincoln, NE (LNK)
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Jamie Harder

Chief Financial Officer

As Vice President and CFO, Jamie provides leadership for the accounting, credit, information services, material services, and treasury services areas. Before serving in her new role, Harder was a controller with Duncan Aviation for four years.

Harder earned a degree in Business Administration, Accounting, and Management at Midland University in Fremont and gained seven years of experience working in both private and public accounting prior to coming to Duncan Aviation.

In Harder's free time, she spends as much time outside as possible, and that includes working in the yard, going for long bike rides, golfing, and playing volleyball. She also enjoys traveling, cheering for Husker athletics, going to concerts, and playing with her niece and nephew.

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Kasey Harwick

V.P., Airframe Maintenance

Kasey Harwick

V.P., Airframe Maintenance
Lincoln, NE (LNK)
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Kasey Harwick

V.P., Airframe Maintenance

In January 2019, Kasey Harwick accepted the position of Vice President of Maintenance for the Airframe Department at Duncan Aviation's Lincoln, Nebraska, facility.

When Kasey joined Duncan Aviation in 1999, he performed completions on green Astra SPX aircraft, until he transitioned to Airframe, which gave him experience on Learjets and Astras. After more than a year as a Lead Technician, where he added Challengers to his growing expertise, Kasey moved on to Team Leader for the fleet customer program and then he served as Project Manager until mid-2017, when he took on the responsibilities of Airframe Department Manager.

In 2017, Kasey and his family moved to Battle Creek, Michigan, where he accepted the position of Director of Maintenance for the Duncan Aviation facility there, and he became a member of the company's Senior Management Team.

During his 20 years at the company, Kasey has learned that customers choose Duncan Aviation because our team members are dedicated to providing high-quality maintenance and repairs while adhering to aggressive downtimes.

While working at Duncan Aviation, Kasey earned an Associate of Applied Science degree in Non-Destructive Testing, an Associate Degree in Science, and a Bachelor of Science degree in Business with a minor in Marketing. In 2018, Kasey earned his Master of Business Administration degree from Creighton University's Heider College of Business, and he was recently accepted into Bellevue University's Human Capital Management Ph.D. program. He'll begin his residency in Spring 2020.

Kasey and his wife Faith have been married for 17 years and have two daughters Elliott and Charlotte. In his free time, you'll find Kasey on the sidelines, cheering on his daughters at one of their many events and working on his classic car and motorcycle.

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Aaron Hilkemann

Chief Executive Officer

Aaron Hilkemann

Chief Executive Officer
Lincoln, NE (LNK)
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Aaron Hilkemann

Chief Executive Officer

As Chief Executive Officer, Aaron C. Hilkemann provides strategic leadership and direction to Duncan Aviation, Inc. to ensure future development and growth for the enterprise.

Aaron joined Duncan Aviation in 1996 as Executive Vice President and Chief Operating Officer. In 1997, he was appointed President. Mid-year 2020, Aaron stepped back from the role as President yet remains Chief Executive Officer and is very active in the strategic direction of the company.

Prior to joining Duncan Aviation, Aaron was Vice President and Director of Financial Operations for FirsTier Financial, Inc. His background includes eight years of public accounting experience with KPMG Peat Marwick where he served as a Senior Audit Manager and concentrated in the areas of manufacturing, construction and banking industries.

Aaron is past Chairman and a current member of the Board of Directors of GAMA (General Aviation Manufacturers Association). He has also served as Past Chairman of the AMAC (Associate Member Advisory Council) of NBAA and the NBAA Board of Directors.

Aaron and his wife, Jennifer, have a blended family of seven children, two boys and five girls. Aaron is active in hiking, hunting, fishing, biking and most recently has become a bee keeper.

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Ryan Huss

Director of Sales

Ryan Huss

Director of Sales
Lincoln, NE (LNK)
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Ryan Huss

Director of Sales

Ryan assumed his current role as Director of Sales and became a member of Duncan Aviation's senior leadership in 2020. Prior to that, he managed sales for airframe and engine services for the Lincoln facility after initially joining the sales force in 2012. Ryan started his career with Duncan Aviation in 2001 as an airframe mechanic and was quickly promoted to lead mechanic and then team leader. Before joining Duncan Aviation, Ryan served in the U.S. Air Force as an Airborne Technician with the 1st Airborne Command and Control Squadron.

Ryan is a licensed A&P mechanic through Embry Riddle Aeronautical University. He enjoys working with customers, building relationships with them and providing them knowledgeable service options for maintaining their aircraft.

Ryan and his wife, Jennifer, have one son, Cole, and two daughters, Ashley and Emily. He enjoys spending time with his family and friends, fly fishing, hiking and golfing. Ryan is active in mentoring youth and enjoys coaching youth sports teams.

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Jeff Lake

President

Jeff Lake

President
Lincoln, NE (LNK)
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Jeff Lake

President

As President of Duncan Aviation, Jeff is responsible for the day-to-day guidance and development of the Duncan Aviation enterprise. He provides direction and leadership for the entire company and leads the senior management team.

Jeff joined Duncan Aviation in 1993 as company controller and soon became Vice President of Finance. He was promoted to Chief Financial Officer in 1998. Jeff assumed the role of Executive Vice President and COO of Lincoln in 2008 where he was responsible for airframe, engine, and paint production areas and for line services, facilities, quality assurance and the flight department.

Prior to Duncan Aviation, Jeff worked as a regional controller for International Paper. He has also worked as a CPA in public accounting.
Jeff graduated from the University of Nebraska-Lincoln with a Bachelor of Science degree in Business Administration with an emphasis in Accounting.

Jeff and his wife, Diana, have three children and enjoy family activities, hiking, fishing, camping, golf and tennis. Jeff has served on the Allocation and Audit committees for United Way of Lincoln/Lancaster County. He also served on the Lancaster County Court Appointed Special Advocates for Children Board of Directors.

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Mike Minchow

Chief Operating Officer

Mike Minchow

Chief Operating Officer
Lincoln, NE (LNK)
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Mike Minchow

Chief Operating Officer

Mike was named Chief Operating Officer of Duncan Aviations Lincoln facility in July 2020. He joined Duncan Aviation's Senior Management Team in October 2015 where he served as Vice President of Modifications and Engineering and before that, Vice President of Sales.

Mike joined the Duncan Aviation Design Center team in 1993 as a Designer while working on his Masters degree in architecture at the University of Nebraska-Lincoln. He transitioned to Team Leader of Design, moved to Sales Team Leader, and then on to Program Manager for a large fleet customer. He was promoted to Sales Manager over Modifications (Paint, Interior, Avionics, and Install) and assumed those responsibilities for Airframe and Engine in 2011. In October 2015, he was promoted to Duncan Aviations Senior Management Team.

Mike has been actively involved in the local community through Leadership Lincoln and United Way and has served on various aviation industry boards including the Gogo Dealer Advisory Board, Honeywell Channel Partner Advisory Board, Aircraft Electronic Association (AEA) Board and most recently joined the NBAA Certified Aviation Manager Governing Board as a Community Director.

Mike and his wife Renae have three boys: Andrew, Mason, and Aden. Mike enjoys hunting, golfing, and attending family activities.

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Andy Richards

Chief Operating Officer

Andy Richards

Chief Operating Officer
Battle Creek, MI (BTL)
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Andy Richards

Chief Operating Officer

Andy was named Executive Vice President and Chief Operating Officer of Duncan Aviation's Battle Creek facility in February 2019. For seven years before that, he held the position of Vice President of Completions and Modifications where he oversaw the Battle Creek paint and interior completions teams and provided on-site support for OEM completions, engineering and certification in Battle Creek.

Andy joined Duncan Aviation in 1997 working as a cabinet shop technician. He spent time leading teams in both cabinet and completions and was promoted to assistant manager of interior completions. In 2008, Andy became involved in Duncan Aviation's OEM completions program and was promoted to Program Manager one year later.

Andy has a Bachelor's of Arts degree and a Master's of Fine Arts degree.

Andy and his wife Pam enjoy spending time with their three daughters and going to their cabin on the Au Sable River in northern Michigan. Andy practices yoga, bikes to work, and exercises in the workout facility at Duncan Aviation.

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