(2E)-hexenoyl-CoA + FADH2 => hexanoyl-CoA + FAD + H(+)
(2e)-hexenoyl-coa + fadh2 => hexanoyl-coa + fad + h(+)
(2E)-hexenoyl-CoA + FADH2 => hexanoyl-CoA + FAD + H(+)
(2e)-hexenoyl-coa + fadh2 => hexanoyl-coa + fad + h(+)