A single-engine Pilatus PC-12/47E turboprop airplane that crashed Friday afternoon in northeast Wyoming, killing all seven onboard, may have had an autopilot malfunction, national authorities say.
National Transportation Safety Board spokesman Keith Holloway said in a Saturday statement that preliminary information shows the plane went down after reporting an “autopilot issue during flight.”
The plane left Nebraska about midday Friday and was bound for Billings, Montana. It crashed about 1 p.m. near the Montana border in northern Campbell County.
Among those killed were three members of the Gospel Hall of Fame group The Nelons — co-founder Kelly Nelon Clark and husband Jason Clark, and daughter Amber Nelon Kistler. Also killed were Nathan Kistler, Melodi Hodges and Larry and Melissa Haynie.
That the plane reported an autopilot issue, along with violent pitching up and down before plummeting from an altitude of 26,000 feet, doesn’t surprise Dan Gryder, a pilot who investigates aircraft incidents and crashes. He reports his findings on his popular YouTube channel.
He told Cowboy State Daily he doesn’t know the exact cause of the crash, but based on the information the plane relayed before it went down, reported by Flight Aware, frantic whipping up and down at 300 mph would have caused the plane to break apart.
“Like, when you stick your hand out going down the road,” said Gryder, describing the air’s effect. “It forces your hand up with a lot of force.”
NTSB investigators are on site and will issue a preliminary report in about two weeks, according to agency protocol.
“The aircraft is in a remote location, and once (investigators) gain access, they will begin documenting the scene, examining the aircraft,” Holloway said in the Saturday statement. “The aircraft will then be recovered and taken to a secure facility for further evaluation.”
A Domino Effect
The force the plane could have been under could have started what Gryder called a domino effect of parts breaking off the plane, then more breakage.
Campbell County law enforcement scanner communications Friday afternoon responding to the crash attested to this as well. One agent noted finding plane parts in a larger perimeter than one would expect from just the impact of a crash.
The plane must have been breaking apart while still airborne, the agent said.
Photos of debris scattered over the area published by the Gillette News Record also seem to corroborate Gryder’s hypothesis.
Something may have gone wrong with the autopilot system just before the crash, said Gryder.
The Pilatus is a good plane, he said, but any one of four or five other companies could have manufactured the autopilot system, and he said he does not know which one built the one on this particular plane.
The autopilot system is electrically connected to the elevator pitch trim servo, which in turn moves a small elevator trim tab, which ultimately controls aircraft pitch. The elevator trim tab becomes more effective at higher speeds, he said.
That tab can have an “absolutely huge” effect on the plane’s position. Gryder likened it to the power of the nation’s top executive.
“It’s amazing to me that the president of the United States can have that much power, but he does,” he said.
Once the plane starts to break apart, “you’re done,” he said. There’s no way to reverse the inevitable crash at that point.
The fall would have unfolded over about two violent minutes, and Gryder said it’s his opinion everyone on board would have been alive to experience it until impact.
Jet Fuel
The plane had fueled up in Nebraska shortly before flying over Wyoming. It was probably carrying around 300 gallons of jet fuel when it approached the Wyoming-Montana border, Gryder said.
The jet fuel crashing down into Wyoming’s sage lands helped spark a large fire that Campbell County authorities fought both via air and from the ground.
Firefighters were combatting the last smolders Saturday, the agency reported.
The Race Is Run
The Gaither Management Group, which handles The Nelons, acknowledged the deaths of the members in a statement late Friday.
“One of the best loved Gospel music families in America, The Nelons, were involved in a tragic, fatal plane crash on Friday afternoon on their way to join the Gaither Homecoming Cruise to Alaska,” the statement reads.
Autumn Nelon Streetman, the youngest daughter of Jason and Kelly Nelon Clark, was not on the plane and confirmed their identities in a separate statement.
“Thank you for the prayers that have been extended already to me, my husband, Jamie, and our soon-to-be-born baby boy, as well as Jason’s parents, Dan and Linda Clark,” her statement reads. “We appreciate your continued prayers, love and support as we navigate the coming days.”
The Nelons performed vocally powerful ballads and pop-bluegrass worship songs. Their YouTube profile features such works as a soulful cover of Casting Crowns song “The Only Scars In Heaven” — a song about looking forward to an eternity with loved ones in heaven.
They covered the popular Christian version of Leonard Cohen’s “Hallelujah” in a campfire-side film featuring layered harmonies, and they tackled the folk classic “Gentle On My Mind” with a banjo.
The Nelons have won 10 Gospel Music Association Awards and was inducted into the GMA Hall of Fame in 2016.
Contact Clair McFarland at clair@cowboystatedaily.com
Clair McFarland can be reached at clair@cowboystatedaily.com.
