A helicopter crash on Jan. 2claimed the lives of four family members from Oregon in a remote area of Pinal County, Arizona. Officials said the aircraft struck a slackline stretched across a canyon just before 11 a.m. local time.
The helicopter crashed in Telegraph Canyon, south of Superior and about 65 miles east of Phoenix,according to thePinal County Sheriff's Office.
Search and rescue teamsreached the wreckage later that evening and confirmed four fatalities, according to the Pinal County Sheriff's Office.
The Federal Aviation Administration and National Transportation Safety Board were investigating the crash.
Who was on board the helicopter?
Family members have identified the four passengers as David McCarty, 59, Rachel McCarty, 23, Faith McCarty, 21, and Katelyn Heideman, 22. The identities have not yet been officially released by the Pinal County Sheriff's Office.
Public records indicate that David McCarty was the owner of Columbia Basin Helicopters, a professional helicopter service company based out of La Grande, Oregon.
The helicopter in the crash was an MD 369FF. It was not immediately clear whether McCarty's company or its aircraft were involved in the crash.
Mary Jane Heideman, Katelyn Heideman's mother and Rachel and Faith McCarty's aunt, told The Arizona Republic, part of the USA TODAY Network, that the loss of four family members has been devastating.
What caused the helicopter to crash?
An eyewitness reported seeing the helicopter strike a portion of the slackline before falling to the bottom of the canyon, according to the Sheriff's Office.
"Preliminary evidence indicates a recreational slackline more than one kilometer long had been strung across the mountain range," the Sheriff's Office said.
The FAA had been informed of the aviation marked slackline and issued a notice to air missions, or NOTAM, before the crash, the International Slackline Association said in astatement.
"No highliners were on the line at the moment of the incident," the association said in a statement. "We extend our deepest sympathy and condolences to all of those affected by this tragic event."
Federal aviation recordsshow that a NOTAM had been issued to pilots warning them of a "tight rope" obstruction in the area at the time of the crash.
The notice described a flagged and lighted rope within a one-nautical-mile radius of the site at an altitude of about 600 feet above ground level.
What is a slackline?
A slackline is a narrow length of nylon or polyester webbing anchored between two points to allow individuals to balance on or walk across, according toSlackline US, a nonprofit that promotes the sport.
Highlining is the practice of balancing on a slackline at great heights, including across canyons and between cliffs.
Where was the helicopter going?
The helicopter departed from Pegasus Airpark in Queen Creek, according to the Pinal County Sheriff's Office.
Officials have not released information about the helicopter's destination.
This article originally appeared on Arizona Republic:4 killed in Arizona crash after helicopter hits slackline
