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

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

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

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

The helicopter that crashed in Arizona, killing a man and three nieces — on his wedding day — has been recovered by federal ...

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

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

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

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

A property owner says the slackline the helicopter is believed to have hit didn't have his permission to be there.

Helicopter crash in Arizona linked to collision with slackline prompts investigation into aviation safety and pilot alert ...

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