In determining the amount of an operating loss loan to be insured pursuant to this subsection, the Secretary shall not reduce such amount solely to reflect any amounts placed in escrow (at the time the existing project mortgage was insured) for initial operating deficits. If an operating loss loan was insured by the Secretary pursuant to this subsection before October 28, 1992 , and was reduced solely to reflect the amount placed in escrow for initial operating deficits, the Secretary shall insure, to the extent of the availability of insurance authority provided in appropriation Acts, an increase in the existing loan or a separate loan, in an amount equal to the lesser of (A) the maximum amount permitted under this subsection and the applicable underwriting requirements established by the Secretary and in effect at the time the loan is to be made, or (B) the amount of the escrow for initial operating deficits.