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Rare hazard explains rescue helicopter crash on Mt Pirongia

Official report says condition called vortex ring state needs an alert system.

The crashed rescue helicopter on Mt Pirongia. Photo: NZDF.

Nevil Gibson Thu, 17 Apr 2025

The Transport Accident Investigation Commission’s (TAIC) final report on the 2023 crash of a Westpac rescue helicopter on Mount Pirongia in rural Waikato has recommendations for the international aviation industry on an infrequent hazard.

It’s an aerodynamic condition called vortex ring state

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Nevil Gibson Thu, 17 Apr 2025
Contact the Writer: ngibson@nbr.co.nz
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Rare hazard explains rescue helicopter crash on Mt Pirongia
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