Cessna Citation : Certification Hâtive

5 Mar 2023 · 27 min
26:32

This French-language YouTube monologue analyzes two related events involving Cessna Citation business jets and a Tamarack aftermarket turbulence-reduction system. It recounts a fatal crash on 30 October 2018 (three fatalities) and a later serious in-flight control incident (departure from Bournemouth) in which a 73‑year-old single pilot barely landed the jet. The speaker describes the Tamarack modification (a ~55 cm wingtip extension with electrically driven paired surfaces able to deflect +20°/−9°), explains electrical/assembly failures (a loose washer/fastener causing a short that can drive an aileron hard-up), and how the design and relaxed certification allowed a left-wing up seizure to overpower aircraft controls — with an 141‑knot recovery threshold and a 380‑knot impact speed reported for the crash. The video criticizes certification complacency (EASA recertification then US acceptance), notes regulatory grounding and fixes (including injunctions to physically lock the surfaces), and highlights poor pilot briefing and counter-intuitive checklist design.

Questions this video answers

30 October 2018

Three (owner, an executive, and a pilot).

Approximately 380 knots at impact.

About 55 cm added to the wingtip.

About +20° (up) and −9° (down).

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