Coronial
QLDother

Zwahlen, Bernard

Deceased

Bernhard Zwahlen

Demographics

49y, male

Date of death

2005-09-15

Finding date

2008-02-27

Cause of death

Head injury due to hang gliding accident (pilot)

AI-generated summary

A 49-year-old experienced hang glider pilot died from head injuries sustained in a crash at Hughenden Airport. During a static ground tow, the aircraft failed to separate from the tow line due to a snap link catching the bridle's loose weave. The pilot attempted release by pulling a V.G. cord, but this became entangled with the snagged tow line. Unable to separate, the aircraft spiralled downward into trees. The pilot did not deploy his parachute or use a knife to cut free—he was not carrying an accessible hook knife as recommended. Contributing factors included non-standard equipment modifications, use of snap links instead of screw-gate rings, and failure to carry mandatory safety equipment. The coroner recommended mandatory screw-gate rings and accessible knife carriage.

AI-generated summary and tagging — may contain inaccuracies; refer to original finding for legal purposes.

Error types

Contributing factors

  • Snap link caught bridle weave preventing separation from tow line
  • Non-standard equipment modifications to tow bridle system
  • V.G. cord entanglement with snagged tow line during release attempt
  • Loose weave bridle design allowing snap link to snag
  • Failure to carry accessible hook knife despite recommendation
  • Inability of ground crew to communicate with pilot during emergency
  • Pilot did not deploy parachute

Coroner's recommendations

  1. HGFA Tow Manual be amended to recommend screw gate type rings, NOT snap links, be used as the connection ring between the tow line and the pilot to minimise the risk of the bridle or any other part of the craft being snagged after release
  2. All clubs make it mandatory that a knife be carried in an accessible position while in flight
Full text

Source and disclaimer

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