MOSAIC was a subject of intense conversations at EAA AirVenture 2023 in Oshkosh, Wisconsin. Surprising many of us, the FAA released the notice of proposed rule making (NPRM) for MOSAIC ahead of schedule. Lots of people who needed to study it were already en route to the EAA airshow for a week, 10 days, or longer.
If you haven’t been paying attention, MOSAIC is an acronym for a regulation that affects all aircraft with special airworthiness certificates. Aircraft built by Cessna, Piper, Cirrus, Diamond, and others instead have standard certificates and are not touched by this MOSAIC regulation. In contrast, all LSA, experimental amateur built airplanes, and warbirds have special certificates.
If you already know enough, here are some helpful links:
The Clock Is Ticking
The FAA offered 90 days to comment on their proposal, which started out as 318 pages of text that no one would call fun reading. For a couple of weeks, most people in the industry hardly had time to look at it. Now time is starting to grow short.
It is possible to request an extension, but of course, that will simply add time to the end, delaying the new rule’s release. Pilots would have to wait longer for its benefits.
On the other hand, while portions of MOSAIC are like Christmas in July, other sections stimulate questions, big and small. The document is only a proposal. It will change. Your comments could help move it in a direction you wish, but you have to comment to hope for an improvement.
The rule can be divided into two main parts: airplanes and pilot certificates, plus operating limitations—including maintenance. The former is like “Christmas in July” with many capabilities that industry and pilot member organizations have sought. The latter describes who gets to fly and maintain these MOSAIC LSA and under what rules. This section inspires more concern; some of this you can pick up from the nearby charts but learning more will take additional study and some…