A mechanic who knew the plane's owner, Jacek Mazurek, told investigators that Mazurek told him that the twin-engine Cessna was leaking fuel and oil. The mechanic, Michael Petrossian, also says he had warned Mazurek about doing a high-speed fly-by followed by a quick climb in the plane.
http://www.nj.com/news/index.ssf/2011/12/documents_pilot_of_fatal_2010.html
