Uploaded June 2021 | Updated September 2026, 2 weeks ago

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Let's peek over the shoulder of the mechanics as they perform the recurring tests of the aircraft transponder and pitot/static system test, as required by FAR 91.411 and 91.413. Seeing this may give you some helpful insights into how your aircraft instrument works and how their accuracy is ensured.

Special thanks to Shane Vande Voort and Haven Hick of Classic Aviation in Pella, IA for allowing me to capture these tests, as well as to Sullivan Vande Voort for assisting with the video recording.
Visit flyclassicaviation.com

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