AAIB investigation to Aerialtronics Altura Zenith ATX8, (UAS registration n/a) 011019
Loss of control due to magnetic interference from high voltage cables, Stoke Gifford, Gloucestershire, 1 October 2019.
Summary:
Shortly after takeoff for a flight from a road bridge above two railway tracks, the UAS in GPS mode started to drift, accelerate and descend away from the pilot. The pilot was unable to regain control before the it crashed into vegetation next to the tracks. A subsequent investigation by the operator found that magnetic deviations of up to 140° were observed over localised regions of the bridge below which the railway track’s overhead high-voltage wires were being ducted.
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Published 14 May 2020