Updated: 6:35 p.m.

Sen. Claire McCaskill acknowledged Monday that she and her husband failed to pay $287,000 in property taxes on a private aircraft that she used for official Senate travel and announced she intended to sell the “damn” plane.

The Missouri Democrat, who is up for re-election in 2012, announced earlier this month that she would pay the U.S. Treasury $88,000 after a report in Politico that McCaskill had used official funds to pay for fuel and other costs related to her use of the plane for Senate-related duties and at least one political event.

“The former auditor in me wanted to take a really close look at everything surrounding this plane. So I began a thorough review of the plane and all of the flights that have been taken,” McCaskill said, according to a recording of the conference call provided by her office.

McCaskill said her review revealed that she and her husband had failed to pay property taxes on the plane following its purchase in 2007. She vowed to immediately repay those taxes, which amounted to about $287,000 in total.