How was a thin strip of nylon or polyester webbing stretched between two points to blame in the January crash that killed four near Superior?

A helicopter crash on Jan. 2 claimed the lives of four family members from Oregon in a remote area of Pinal County. Officials said the aircraft struck a slackline stretched across a canyon just before ...

A sightseeing helicopter carrying four family members crashed in the mountains of central Arizona after apparently striking a slackline stretched high across a canyon, killing everyone on board. The ...