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SESK: Stuff Everyone Should Know · sesk.info/sport-slsa-21-190

Under which CFR section does a factory-built light-sport category aircraft get its special airworthiness certificate?

14 CFR 21.190, the S-LSA.

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  1. 14 CFR 21.190 ✔
  2. 14 CFR 21.191
  3. 14 CFR 91.327

Why: Factory-built light-sport aircraft (S-LSA) receive a special airworthiness certificate under 21.190. Kit-built aircraft (E-LSA) use an experimental certificate under 21.191. Section 91.327 covers how they are operated and maintained.

Huh, didn't know that: Applicants submit a manufacturer's statement of compliance, a pilot's operating handbook and a maintenance and inspection program.

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Why did the factory-built plane love paperwork? It was certified to be a good read.
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References

Answer: 14 CFR 21.190. Factory-built light-sport aircraft (S-LSA) receive a special airworthiness certificate under 21.190. Kit-built aircraft (E-LSA) use an experimental certificate under 21.191. Section 91.327 covers how they are operated and maintained.

  1. 14 CFR 21.190, Light-sport category airworthiness certificate (eCFR) www.ecfr.gov/api/renderer/v1/content/enhanced/current/title-14?part=21&section=21.190
    The FAA issues a special airworthiness certificate in the light-sport category to operate an aircraft
    Checked 2026-10-11.
  2. 14 CFR 21.191, Experimental airworthiness certificates (eCFR) www.ecfr.gov/api/renderer/v1/content/enhanced/current/title-14?part=21&section=21.191
    Operating light-sport category kit-built aircraft. Operating an aircraft of a type that has been certificated under § 21.190 and assembled from an aircraft kit
    Checked 2026-10-11.

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