UK – AAIB Report: DJI Matrice M210 v1, Battery communication warning appeared and control lost, Poole, Dorset | sUAS News
The Air Accidents Investigation Branch has published a report into an investigation into an accident involving DJI Matrice M210 Version 1 quadcopter which occurred on 19 November 2020, Poole in Dorset.
A quadcopter unmanned aircraft (UA) was being flown during a police operation when the wind at 400 ft exceeded the forecast wind, the manufacturer’s wind limit and the maximum restricted speed of the UA. The UA drifted beyond visual line of sight and then communication with it was lost. When the battery level was low it entered an auto-land mode but collided with the wall of a house, damaging its propeller blades before coming to rest on a balcony.
The investigation revealed that shortly after takeoff one of the UA’s two batteries had disconnected which resulted in its maximum speed being restricted, but this restriction is not referenced in the user manual and neither the remote pilot nor operator were aware of it.
When the UA detected that the manufacturer’s wind limit had…