AMR to Write Down Acquisition Costs

AMR Corp., owner of American Airlines, will take a $990-million charge to write down the value of acquisitions such as Trans World Airlines Inc. and Reno Air Inc., widening losses at the largest airline company.

The write-down, in line with what the company forecast in July, will be as of this Jan. 1, AMR said in a Securities and Exchange Commission filing.

AMR shares fell 56 cents to $3.76 on the NYSE.