vertical-endeavour.com

I did not realise that this had been achieved. It happened in 2005.

I remember following the incident in the nepalese media at the time. It was a controversial incident that was disputed by everestnews.com (a major Everest news site) and I think there was also an issue about whether they had obtained and paid for the proper permissions from the government. It disappeared off the media and I don't think I ever heard about it again till now. Interesting event, wonder what has become of it.
www.everestnews.com/stories2005/everestcopter06032005.htm

From the video it is hard to establish if it was the summit of Everest that he landed on. However the peak he was flying toward before touch-down certainly looked like Everest.