AMR Forecast Cut by Analysts  DALLAS (Reuters) - Several Wall Street analysts cut their  forecast on earnings for American Airlines parent AMR Corp.  &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=AMR.N target=/stocks/quickinfo/fullquote"&gt;AMR.N&lt;/A&gt; on Thursday while the airline's chief executive said  high fuel prices had stung the world's largest carrier.