AAIB investigation to Parrot Anafi USA, (UAS registration n/a) 180421
Power loss in flight resulting in ground impact, near Princes Risborough, Buckinghamshire, 18 April 2021.
Summary:
皇冠体育app unmanned aircraft (UA) was operating at 60 m agl with an observer maintaining visual line of site and an operator controlling the aircraft and camera. 皇冠体育app weather was overcast but with good visibility and low wind. 皇冠体育app UA had been conducting a survey of nearby fields and woodland and had been flying for approximately 11 minutes. It was stable and hovering as the operator yawed the aircraft to pan the camera around. 皇冠体育app controller suddenly lost connection with the UA and the tablet screen showing the camera picture displayed 鈥渨hite noise鈥�. 皇冠体育app operator noticed that the UA鈥檚 Wi-Fi signal had reduced from green to red but there was no other information displayed.
皇冠体育app observer watched as the UA pitched forwards and rapidly descended into the ground in nearby woodland. 皇冠体育app aircraft was found 300 m away upside down. One rotor blade had snapped, a rotor arm had been dislodged, the rotor arms were unable to fold out and the battery had been released and was located next to the aircraft.
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