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Former Pilot Receives ‘Life-Altering’ Treatment for Longtime Condition

Despite having hemophilia B, Greg Heifner became certificated to fly recreational aircraft.

Greg Heifner flying a Cessna 421.
Greg Heifner flying a Cessna 421 [Courtesy: Greg Heifner]
Gemini Sparkle

Key Takeaways:

  • Greg Heifner, diagnosed with severe hemophilia B from childhood, overcame significant physical limitations and was initially denied a pilot's license by the FAA due to his condition.
  • Through persistence and determination, Heifner eventually secured a "Waiver of Demonstrated Ability" from the FAA, allowing him to realize his dream of flying engine-powered aircraft and participating in airshows.
  • Despite a later heart attack ending his pilot-in-command career, Heifner led a full life, building companies and a family, and remained connected to aviation through his son.
  • Decades after his diagnosis, Heifner received a groundbreaking one-time gene therapy (Hemgenix) that dramatically improved his hemophilia, freeing him from medication and bleeding episodes and fulfilling a lifelong hope for a transformative treatment.
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As a kid, Greg Heifner’s life was narrowly circumscribed.

Diagnosed with the blood clotting disorder hemophilia B, also known as Christmas disease, he suffered frequent bleeding into his joints, which reduced his mobility and left him reliant on a wheelchair. Something as minor as losing his baby teeth could have killed him.

Zach Vasile

Zach Vasile is a writer and editor covering news in all aspects of aviation. He has reported for and contributed to the Manchester Journal Inquirer, the Hartford Business Journal, the Charlotte Observer, and the Washington Examiner, with his area of focus being the intersection of business and government policy.

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