** U.S. power provider FirstEnergy's FE.N shares fall 8.9% to $39.34, lowest in more than a week
** The company reported adjusted earnings of 61 cents per share versus estimate of 70 cents per share, according to data compiled by LSEG, after market close on Wednesday
** It expects current-year profit between $2.4 per share and $2.6 per share, below analysts' estimate of $2.89 per share
** Company executives said in a conference call that they would address issues around an Ohio rate case audit in 30 days
** Stock down 1.4% YTD
(Reporting by Seher Dareen in Bengaluru)
((Seher.Dareen@thomsonreuters.com;))