(AP) — A business jet flying over New England violently pitched upward then downward, fatally injuring a passenger, after pilots responding to automated cockpit warnings switched off a system that helps keep the aircraft stable, U. John Cox, a former airline pilot and now a safety consultant, said “there are definitely issues” with the pilots’ pre-flight actions, but he said they reacted correctly when they followed the checklist for responding to trim failure. The flight crew was comprised of two experienced pilots with 5,000 and 8,000 hours of flying time, and held ratings needed to fly for an airline