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 ...

Slackline warning was issued before helicopter crash that killed groom and nieces on wedding day - The pilot was taking his ...

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 ...

Four Oregonians died Jan. 2 in a helicopter crash in a remote canyon in Arizona. The Pinal County Sheriff's Office said the ...

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

Preliminary evidence indicated a slackline of more than 1 kilometer in length was strung recreationally across a canyon.

Federal investigators are examining if a slackline was properly authorized following the deadly helicopter crash near ...

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

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

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