John, One requires no certificate to build or maintain an experimental amateur-built aircraft. Only the condition inspection needs to be done by a licensed mechanic (A&P, IA not required) or repairman (builder 65.104 or LSRI/LSRM 65.107).
The applicable reference for condition inspection requirements is the aircraft operating limitations with the airworthiness certificate - inspections required and who may perform for that aircraft. These always invoke FAR 43 Appendix D for condition inspection. Certificate privileges for Light Sport Repairmen are covered under 65.107. LSRI/LSRM may inspect EA-B aircraft within the scope of their certificate privileges provided the operating limitations allow it. I had to change mine to allow me to complete the condition inspection under my LSRI certificate. Adam Deem On Fri, Jul 3, 2026 at 12:25 PM John Gotschall via KRnet < [email protected]> wrote: > This one made me think. I haven't read the regs on this. > > Factory built LSA meet certain engineering standards, experimentals are > free of those standards (though not free of a DAR's scrutiny). > > In that case If you gain a certification to work on LSA's, your cert need > only cover aircraft and their parts that meet that LSA engineering > standards set, not the wide open fields of experimentals. > > I'd guess no, for experimentals an LSA maintenance cert would not prepare > one for the wild wide world of experimentals. You'd need more experience > and education for that. You'd want an AP for that, or the actual guy who > built the thing. > > Experimentals are experimentals because they exist, often, to push outside > 'normal' engineering limits. > > Cheers! > > Anyone wanna quote the applicable regs? > > > > On Fri, Jul 3, 2026, 08:18 Kayak via KRnet <[email protected]> wrote: > >> Thanks Oscar. Boils me down to one question: >> >> If I buy a EAB aircraft that I didnt build (like a KR2) and get my LSRI-A >> cert, can I do my own annual condition inspections? >> >> >> >> On Fri, Jul 3, 2026 at 1:10 AM Oscar Zuniga via KRnet < >> [email protected]> wrote: >> >>> Howdy, Netters; >>> >>> >>> >>> Since the list is pretty quiet, I’m going to take up some bandwidth in >>> order to add a bit of clarification and detail to what John posted about >>> the forum presentation on recent changes to the repairman certification >>> under MOSAIC and the ratings and categories that fall under that >>> certification. >>> >>> >>> >>> First of all, complete explanatory information on this subject is in a >>> 67-page FAA document, Advisory Circular 65-32B. You can do a lot of >>> snooping around on the internet for a deeper dive into other aspects of >>> this, but for our purposes, this AC says it all and then some. In fact, >>> only about half the pages in the AC apply to KRs and to us as KR owners, >>> pilots, and builders. Here’s a link: AC 65-32B >>> <https://www.faa.gov/documentLibrary/media/Advisory_Circular/AC_65-32B.pdf> >>> . If the link doesn’t make it through our filter, it’s >>> https://www.faa.gov/documentLibrary/media/Advisory_Circular/AC_65-32B.pdf >>> . Accept no substitutes (such as AC 65-32A, which has been superseded). >>> >>> >>> >>> Next, recognize that there are various types of aircraft covered under >>> the rules and described in the AC, but since the Gathering is KR-specific, >>> the forum will be specific to experimental, amateur-built (E-AB) aircraft >>> that meet the definition of a Light Sport Aircraft as stipulated in the >>> modernized “light-sport category” under Part 22. This new category >>> definition is set to go into force this July 24, 2026 and it eliminates the >>> strict 1,320-pound weight limit formerly imposed on LSA and other things >>> that will broaden the definition. Interestingly though, the definition >>> excludes rockets as an acceptable powerplant for LSAs. Sorry, guys ;o) >>> >>> >>> >>> We will not discuss balloons, weight-shift trikes, gliders, rotorcraft, >>> or other categories and classes of aircraft that are also now able to be >>> considered for repairman certification under MOSAIC. We won’t discuss >>> S-LSA aircraft, which are factory-built. We won’t discuss certificated >>> aircraft like Cessnas and Pipers, some of which will meet the new >>> light-sport category description. We will not discuss the “maintenance” >>> rating that is available to certified LSA repairmen under MOSAIC since >>> we’ll be focusing on KRs as personally-owned E-AB aircraft that we can >>> maintain ourselves anyway. The rating we will discuss is “inspection”, >>> which will allow us to perform the condition inspections on our own KRs and >>> make logbook entries of this type: >>> >>> + + + + >>> >>> July 4,2026 TT250.0 >>> >>> I certify that this aircraft has been inspected on [date] in accordance >>> with the scope and detail of 14 CFR Part 43 Appendix D, and was found to be >>> in a condition for safe operation. {signed} K.R. Netter, LSRI-A #1234567 >>> >>> +++++ >>> >>> >>> >>> We /may/ discuss the possibility of there now being a lower bar for >>> someone to jump over to become a KR owner and pilot under these rule >>> changes since a new entry path exists for a person with Sport Pilot and >>> LSRI-A certificates and ratings to go out and buy a complete and flying KR >>> and then operate, maintain, and inspect it without an airman medical of any >>> class, with only 20 hours of flight experience, without having built any >>> part of the airplane at all, and without an A&P certificate. However, as >>> with all things: “just because you /can/ do it doesn’t mean you /should/!” >>> We may take that discussion outdoors with some refreshments though. >>> >>> >>> >>> Oscar Zuniga >>> >>> Medford, OR >>> >>> KR 1.5 N335KC “Sunbeam”, in restoration >>> -- >>> KRnet mailing list >>> [email protected] >>> https://list.krnet.org/mailman/listinfo/krnet >>> >> -- >> KRnet mailing list >> [email protected] >> https://list.krnet.org/mailman/listinfo/krnet >> > -- > KRnet mailing list > [email protected] > https://list.krnet.org/mailman/listinfo/krnet >
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