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

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

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

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

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

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 line was more than 1 kilometer long, or more than half a mile, strung between mountains near Superior, Arizona, ...

David McCarty, 59, was flying his relatives in his private helicopter through remote Telegraph Canyon near Superior, Ariz., ...

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

A sightseeing helicopter carrying four family members crashed in the mountains of central Arizona after apparently striking a ...