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Martha Jercinovich

Duncan Aviation is the largest family-owned business jet support facility in the world. What began in 1956 with founder Donald Duncan has flourished into a globally respected aviation company that has grown over multiple generations. Donald’s son, Robert, worked at the family business in the early 1960s when he was on break from college. Then grandson, Todd, started working there in 1988. Now, great-grandsons PK and Harrison are starting their careers with the company. Through it all, one thing has always remained at the heart of Duncan Aviation: Make sure customers and team members all feel like family.
“We’ve always been raised to treat people with honesty and respect,” said PK. “Whether we are communicating with a customer or one of our 3,000 team members, we are in this together.”
While Todd continues to lead as Chairman, the next generation of leadership is taking shape. PK and Harrison each carved out their own paths to the company, gaining valuable experience inside and outside of aviation. Their stories are unique, but aligned in different ways.
As kids, both remember weekends spent roaming the hangars with their dad and grandfather, watching airshows from office windows and zipping around in go-karts near the runway. PK didn’t have a straight path to working at the family business. After studying journalism and photography in California, he considered striking out on his own, hesitant to rely on his family name. A shift in perspective changed everything. “I realized I wasn’t coming back to rely on my family; I was coming back to learn from them,” says PK. “And the truth is, airplanes are pretty cool.”
Harrison always knew he wanted to work at Duncan Aviation. He intentionally pursued external experience first. With a background in finance, an MBA, and leadership roles outside the aviation industry, he brings a new perspective and passion for team culture. “I’m proud of the work I’ve done outside of Duncan Aviation,” he said. “But it feels right to be back. I’m excited to shape the future of a company that’s meant so much to me and my family.”
The two complement each other. PK with his customer service and operations expertise, Harrison with his financial and strategic background. Their leadership styles embrace openness, humility, and trust. “We’re not afraid to disagree with each other. We talk things out. We respect one another,” said Harrison. “And we always have fun doing it.”
Though Duncan Aviation continues to grow in size and capability, both PK and Harrison are committed to preserving its culture. “We’ll always act small, no matter how big we get,” PK said. “This still needs to feel like a family company, for our team and our customers.”
Together, they’re focused on long-term growth, investing in team members, and ensuring the company remains a great place to work for generations to come.
<h2>&nbsp;</h2>

<h2>PK Duncan</h2>
After earning a degree in Communications with an emphasis in Journalism and a minor in English from California Lutheran University, PK initially explored creative work in photography and writing. He also managed a restaurant, gaining early leadership and customer service experience. It wasn’t until he stepped away from the California coast and enrolled at Spartan College of Aeronautics in Denver that his aviation career truly took off.
“I didn’t want to sit behind a desk all day,” PK said. “I wanted to work with my hands and understand what our technicians actually do.”
After graduating with his A&amp;P license, he joined Duncan Aviation as an airframe technician on the Bombardier team. Those years gave him insight into the demanding and detailed work that happens on the floor. “That experience changed everything. I saw how hard our team works, working long hours, and sweating through shifts in hot hangars. It gave me a real drive to support them.”
That desire to connect more deeply with both team members and customers led PK into his current role as a Project Manager.
Today, PK is also deeply involved in OEM relations and works closely with senior leadership to help shape the future of the company. “I don’t walk into work thinking I know everything. I ask questions. I listen. And I learn from the people around me,” he says. It guides both his professional growth and his leadership style.
Outside of work, PK finds joy in his family. He and his wife, Katie, who leads the Duncan Aviation Scholarship Foundation, met as teenagers. They now have two young sons, Kanan and Banks. They have created traditions like Banana Bread Fridays: weekly early-morning outings to the local coffee shop to spend time together before the workday begins.
“We love the lake, love being outside,” PK shared. “We bought a little cabin in Minnesota and it’s become our happy place, just 850 square feet of family and fun.”
What drives PK most is legacy, not just of the Duncan name, but of the people behind it. “I want every team member to feel like they’re part of something bigger. We’re not just holding our own, we’re leading it. That’s what motivates me.”

<h2>Harrison Duncan</h2>
For Harrison, leadership is about earning your place, learning constantly, and keeping perspective along the way. Though his last name is deeply rooted in Duncan Aviation’s legacy, Harrison has intentionally charted his own course, gathering knowledge, experience, and insight outside the family business before returning to contribute in his own way.
After earning his undergraduate degree from Nebraska Wesleyan University, Harrison spent time at Duncan Aviation in several departments— Safety, Quality, Auditing, Marketing, and Professional Development &amp; Training. He then completed his MBA at Georgia Tech Scheller College of Business, which is one of the most competitive programs in the country. “I always wanted to get my MBA after gaining solid work experience, and after being in the MBA program at Georgia Tech, I realized I wanted to gain work experience outside of the Duncan Aviation organization,” he said.
That decision led him to one of the largest environmental services companies in the US, where he joined the General Manager Accelerated Program. During his time there, Harrison rotated through departments like finance, sales, fleet maintenance, and operations, eventually stepping into leadership roles managing drivers, leading operations supervisors, and conducting special projects across the organization. “I learned so much in that role—especially about what it means to manage people and navigate complex challenges in a high-pressure environment,” he said.
Over time, something shifted. Harrison realized that the pace, pressure, and corporate structure of a massive public company left little room for the values he cared most about: family, impact, and a people-first culture. After a series of reflections and conversations with his dad and Duncan Aviation’s senior leadership, the path became clear: It was time to come home.
Now back at Duncan Aviation, Harrison is working in accounting and finance with a focus on learning, listening, and contributing strategically. “I’m excited to learn from our team members,” he said. “I’m here to build relationships and understand our business.”
Drawing on his previous work experience, he’s bringing fresh ideas and a renewed energy, while also respecting the structure and success that already exists.
Outside of work, Harrison is a devoted husband and father. He and his wife, Brooke, met in college and have been married for six years. “She’s followed me all over the country for my career,” he said. “I’m incredibly grateful for her strength and support.” Together, they’re raising their son, Charles, who is already full of energy, personality, and curiosity.
“What motivates me now is playing the long game,” Harrison said. “I want to grow, contribute, and enjoy life in Lincoln—with my family, friends, and this company that’s always been a part of who I am.” Harrison’s quiet determination and humble approach are proof that true leadership starts with listening, learning, and showing up every single day.
PK &amp; Harrison
While their career paths have taken different routes, PK and Harrison share a connection that’s rooted in trust, mutual respect, and a whole lot of laughter. Whether they’re working side-by-side or just reflecting on their childhood, they demonstrate a bond that translates into their professional lives.
“We balance each other really well,” PK said. “We’ve always been able to have honest conversations, tell each other when we disagree, and then move forward without ego.”
Harrison echoes that sentiment. “Our relationship has evolved through every phase of life. We know each other’s strengths, and we also know how to challenge each other in a good way.”
Even their personalities complement each other. PK is outgoing, relational, 
and people-focused. Harrison is structured, reflective, and driven by data. Together, 
they represent both the heart and the strategy of Duncan Aviation’s future. “We’re not trying to copy anyone’s leadership style,” PK said. “We’re just trying to be leaders our team can rely on and brothers who have each other’s backs.”
<h2>Leaving A Legacy</h2>
Legacy is important to the twins. “I never got to meet my great-grandfather Donald, but when I walk away from this facility on my last day, I want to know that he would be proud,” PK said. “I want my grandfather, Papa, to feel the same. That when our time leading Duncan Aviation is done, they could both say, ‘They did a nice job. I’m proud of what they did.’”
Harrison adds, “The biggest thing I’ve learned, especially from working outside the company, is that I just want to continue being myself. I’ve seen my dad, my brother, and my grandpa each bring their own strengths to the table, and I want to do the same. I want my children to grow up knowing they can be who they are and that their uniqueness is something to be celebrated. If that leads to them joining Duncan Aviation one day, that’s incredible. But more than anything, I want to pass on the values of authenticity, hard work, and purpose.”

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