Pilots Have Questions When It Comes to MOSAIC

Here’s an overview of the proposed MOSAIC regulations and some opinions provided during the comment period.

Dan Johnson

Friday, March 15, 2024 at 08:49 AM ET

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An AirCam flies low and slow out West over the desert. [Courtesy: Lockwood Aviation]

Key Takeaways:

The MOSAIC regulation proposes significant expansions for special airworthiness certificate aircraft (like LSAs), removing previous limits on gross weight, stall speed, maximum speed, and seating capacity, while also allowing advanced features like retractable gear, adjustable props, and diverse propulsion types (electric, turbine, hybrid, multiple engines).
However, the NPRM has generated concerns regarding pilot medical certificate requirements for sport pilots (especially for flying larger aircraft or at night), the introduction of new noise standards, potential reductions in owner maintenance privileges, and several inconsistencies that suggest a "rushed" proposal requiring further clarification.

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MOSAIC (Modernization of Special Airworthiness Certification) is a regulation that affects all aircraft with special airworthiness certificates. Aircraft built by Cessna, Piper, Cirrus, Diamond, and others instead have standard certificates, and their new models remain untouched by this proposed regulation.

In contrast, all light sport aircraft (LSA), experimental amateur-built airplanes, and warbirds are issued special certificates. In my view, the rule can be divided into two main parts: airplane descriptions and capabilities, and pilot certificates, technician privileges, and operating limitations. In short, airplanes or people.