AVIATION giant Boeing has withdrawn its 30 per cent pay rise offer to striking staff in the US after negotiations with union representatives reached a stalemate.

The company said today that the union was not giving its proposals serious consideration.

But the International Association of Machinists and Aerospace Workers (IAM) said Boeing was “hell-bent on standing on the non-negotiated offer” which was sent directly to the media on September 23 and which its members rejected.