A DRONE with a laser measuring pod attached, was extensively damaged when it crashed at Colwyn Bay last January while carrying out a survey.

In a report today the Air Accident Investigation Branch said it had climbed above its set height of 30 metres and when the remote operators tried to return it to ground at 70 metres it was unresponsive then began to descend gaining speed rapidly until it hit the ground.

The AAIB say the unmanned aircraft was being flown with a payload which unintentionally meant it was above its maximum specified weight.

Procedures are being updated so that before any aircraft and payload is flown the weight is recorded to ensure it is within limits. Also, before any new app or software is flown there should be confirmation in writing of its compatibility.