NTSB releases report on deadly helicopter crash near Phoenix

PHOENIX (AP) — The National Transportation Safety Board has released its preliminary findings about a deadly crash of an experimental helicopter earlier this month northeast of Phoenix.
However, an exact cause of the April 16 crash wasn’t revealed in the NTSB report released Thursday.
A pilot and an engineering manager both died when the Bell 206B experimental helicopter went down in an alfalfa field on the Fort McDowell Indian Reservation.
A witness reported hearing a loud bang and