The Air Accidents Investigation Branch (AAIB) found there was a rotor blade fault that caused them to strike the craft and separate.

BBC: Ely helicopter crash

Carlton Cole gave West Ham the lead with a superb 49th minute strike but was at fault five minutes later as his back pass was latched on to by Jermain Defoe who duly scored the equalizer.

CNN: Lennon scores winner as Spurs stay top