Tue, Jun 11, 2019
Airplane Impacted Terrain Near Mount Isa, Queensland, On May 26
The ATSB has published an update on its investigation into the collision with terrain of Cessna 210 VH-SUX near Mount Isa, Queensland, Australia on May 26.
Evidence at the accident site indicated that the aircraft’s right wing had separated while in flight, resulting in a rapid loss of control and subsequent collision with terrain. The two pilots on board were fatally injured.
Subsequent technical examination confirmed the aircraft’s wing spar had fractured due to fatigue cracking, which reduced the spar’s structural integrity to the point where operational loads produced an overstress fracture.
“The ATSB has notified the Civil Aviation Safety Authority, the U.S. National Transportation Safety Board, the aircraft manufacturer and operator of the initial finding of fatigue cracking with the wing spar carry-through structure,” ATSB Executive Director Nat Nagy said. "The ATSB is working closely with those parties to ensure the continued safe operation of the the aircraft type."
The Cessna 210, which had been manufactured in 1976 and had accumulated over 12,000 flight hours, had been conducting a geological survey flight while flying at about 200 feet above ground level at the time of the accident.
The aircraft had been modified for geological survey work and had also been fitted with approved integral wing tip fuel tank and non-standard engine and propeller modifications.
“The ATSB notes that there is no evidence to indicate a connection between this accident and other recent investigations it has conducted involving this aircraft type,” Nagy said.
(Image provided with ATSB news release)
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