This excerpt taken from the TPP 8-K filed Nov 19, 2008.
Return of Contributions. No Partner shall be entitled to the return of any part of its Capital Contributions or to be paid interest in respect of either its Capital Account or any Capital Contribution made by it. No unrepaid Capital Contribution shall be deemed or considered to be a liability of the Partnership or of any Partner. No Partner shall be required to contribute, advance or lend any cash or property to the Partnership to enable the Partnership to return any Partner’s Capital Contributions to the Partnership. To the extent, however, any Partner (by mistake, overpayment or otherwise) advances funds to the Partnership in excess of the Capital Contributions called for under Section 4.01, such excess amounts shall not be Capital Contributions and (other than advances made by the General Partner pursuant to Section 4.03 below) shall be promptly returned by the Partnership to the Partner so advancing such funds.