The aircraft was in the cruise when the propeller detached. The pilot made a successful forced landing without further damage. Examination showed that the bolts securing the crankshaft extension fitting to the crankshaft had fractured in long-term high-cycle fatigue.
Kolb Twinstar Mk 3 Extra, G-CDFA 09-07.pdf (267.67 kb)
Published 10 December 2014