MOSAIC affordability push has yet to shift piston aircraft shipments

The FAA's Modernization of Special Airworthiness Certification rule, known as MOSAIC, was sold as a fix for affordability and access in general aviation. Its first phase took effect on October 22, 2025, widening what sport pilot certificate holders can fly.

The second phase, the larger structural change, takes effect July 24. It creates a manufacturer-certification pathway under 14 CFR Part 22, meant to let builders bring higher-performance light aircraft to market faster and, in theory, more cheaply than the traditional Part 23 route.

The expectation was that lower regulatory cost for a new light aircraft would push manufacturers toward more affordable products aimed at entry-level and sport pilot-eligible buyers. Nine months into Phase I, with Phase II just starting, shipment data does not show that, according to the source.

In the same period, Textron withdrew from its two most affordable piston nameplates.

General Aviation Manufacturers Association figures show 786 aircraft shipped in the first half of 2026, an increase in unit terms for the piston segment. The source argues the growth is leaving the median buyer further from ownership, not closer, with the industry sending more premium aircraft to buyers less exposed to interest rates while conditions for other buyers are more likely to worsen than improve.

The source asks whether general aviation, as it operates now, is pricing out the buyer it needs to keep the pipeline of new owners alive.