New footage has captured the moment a passenger plane and military helicopter collided above Washington DC, as Donald Trump suggested the chopper was “flying too high by a lot”.
A recent mid-air collision between an aircraft and an army helicopter has prompted room for discussion, with the incident labelled as one of the worst in recent history .
All aircraft are equipped with TCAS (traffic collision avoidance system) as standard ever since the deadly Chakri-Dadri mid-air collision near New Delhi in 1996.