(April 8, 2019, 7:21 PM EDT) -- SEATTLE — A Washington state court on March 18 affirmed a jury’s finding of negligence against the pilot of a single-engine aircraft that crashed and seriously injured his wife and son and killed his other son. But it reversed for a new trial on whether any design defect existed in the plane’s engine that proximately caused the crash and, if so, how to allocate fault between the engine manufacturer and the pilot (Stacie Cavner, et al. v. Continental Motors, et al., No. 76178-1-1, Wash. App., Div. 1, 2019 Wash. App. LEXIS 631)....