As noted on WikipediaVotes for deletionHelicopter use in Brasil the newspaper article which has been cited as the source of this claim doesnt actually support it and probably isnt a very good source to cite anyway So Id recommend removing this claim unless there is better verification available Otherwise we will find ourselves cited as the source and it will become an urban legend   If you want to preserve the claim and encourage other editors to work on it put it in the talk page here or just link to it in the articles history from the talk page Then if it can be verified thats the time to put it into the article