Horizon Lines, Inc. (NYSE: HRZ), announced that it has made another voluntary debt reduction payment of $7.5m on its revolving credit facility. The payment is the third made by Horizon Lines in its fiscal fourth quarter and brings the total voluntary debt reduction to $17.5m for the quarter and to $40m since the second quarter. The principal payment reduces borrowings on its $250m revolving credit facility to $140m, and total debt outstanding to $590.5m. “Cash flow in the fourth quarter remains strong, even more so than we expected, and as a result we are repaying another $7.5m of debt today, which is more than we previously planned,” said Mike Avara, Senior Vice President and Chief Financial Officer.