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 (Modernization of Special Airworthiness Certification) regulation proposes to significantly expand the capabilities of Light Sport Aircraft (LSA), allowing for higher gross weights (up to 3,000 lbs), increased stall (54 knots) and maximum speeds (250 knots), up to four seats, retractable gear, adjustable props, and new propulsion types like electric, hybrid, or turbine engines.
This expansion creates a new, more versatile "MOSAIC LSA" category, offering many previously sought-after features and permitting some aerial work, though these enhancements are expected to increase aircraft prices.
However, the NPRM (Notice of Proposed Rulemaking) has raised concerns regarding pilot medical requirements (especially for sport pilots flying larger aircraft without a medical), newly introduced noise regulations, and inconsistencies in proposed night and IFR flight privileges.
The proposal also faces criticism for potential negative impacts on maintenance technician privileges and training, with stakeholders noting inconsistencies and a perceived rushed process, leading to an extended comment period for resolution.

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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.