AMR Corp. , Dallas-Fort Worth, Texas, expects to contribute $450...

AMR Corp., Dallas-Fort Worth, Texas, expects to contribute $450 million to its $5.8 billion American Airlines defined benefit plan in 2005, according to Jacquie Young, American Airlines spokeswoman. She said the expected contribution reflects recent federal legislation that changed the benchmark for calculating pension liabilities, and that the company does not expect to make additional contributions this year.