Upon the Board’s approval of a loan guarantee under this chapter, the Administrator shall have liens on assets securing the loan, which shall be superior to all other liens on such assets, and the value of the assets (based on a determination satisfactory to the Board) subject to the liens shall be at least equal to the unpaid balance of the loan amount covered by the loan guarantee, or that value approved by the Board under section
1103
(d)(3)(B)(iii) of this title.