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

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

The crash resulted in the death of pilot David McCarty and his nieces Rachel McCarty, Faith McCarty and Katelyn Heideman ...

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

Tragic helicopter crash kills pilot and his three nieces on his wedding day. Family devastated as celebratory flight turns ...

Katelyn Heideman, who played three years for the Argos, was one of four people who died when a helicopter crashed on Friday, ...

Relatives named the four people killed when a helicopter struck a slackline in Telegraph Canyon east of Phoenix. FAA and NTSB ...

From new details on the investigation into a helicopter crash outside the Valley that left a man and his three nieces dead to ...

Four people have died after a helicopter crashed Friday morning in Superior, according to the Federal Aviation Administration ...

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

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

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