The people who strung the line - which is used in a sport akin to tightrope walking - had filed an aviation safety notice, ...

A recreational tightrope strung across a remote Arizona canyon likely triggered a helicopter crash that killed four ...

Federal aviation records show a notice was issued to pilots that a tightrope would be stretched across a mountainous area of ...

A private helicopter crashed into a slackline in a mountainous region of southeast Arizona earlier this month, killing the ...

Investigators say a helicopter hit a highline stretched across Telegraph Canyon near Superior, killing four. Here’s what to know.

The case is making ripples through the aviation world, with safety experts unaware of any other helicopter crashes that have ...

A half-mile-long slackline was hung across Telegraph Canyon, a recreational area located about 60 miles east of Phoenix in ...

The Pinal County Sheriff’s Office said the helicopter pilot, identified as a 59-year-old man from Queen Creek, and three ...

Federal investigators are examining if a slackline was properly authorized following the deadly helicopter crash near Superior that claimed the lives of four people on Friday, ...

Federal investigators recovered the helicopter near Superior and continued examining what led to the crash that left 4 family members dead.

Four Oregon family members were identified Sunday as those killed when the private helicopter they were in hit a slackline ...