; (III) in the case of a student at an eligible institution who has successfully completed the first year and second years of an eligible undergraduate flight education and training program but has not yet successfully completed the remainder of such program— (aa) $16,500; or (bb) if such student is enrolled in such a program that is less than one academic year, the maximum annual loan amount that such student may receive may not exceed the amount that bears the same ratio to the amount specified in item (aa) as the length of such program measured in semester, trimester, quarter, or clock hours bears to one academic year; and (IV) in the case of a student at an eligible institution who has successfully completed the first, second, and third years of an eligible undergraduate flight education and training program but has not yet successfully completed the remainder of such program— (aa) $15,500; or (bb) if such student is enrolled in such a program that is less than one academic year, the maximum annual loan amount that such student may receive may not exceed the amount that bears the same ratio to the amount specified in item (aa) as the length of such program measured in semester, trimester, quarter, or clock hours bears to one academic year. (ii) Aggregate limits The maximum aggregate amount of Federal Direct Unsubsidized Stafford Loans an eligible student who is a dependent student may borrow shall be $65,000. (B) Limits for eligible students who are independent students (i) Annual limits The maximum annual amount of Federal Direct Unsubsidized Stafford Loans an eligible student who is an independent student may borrow in any academic year (as defined in section 481(a)(2)) or its equivalent shall be— (I) in the case of an eligible student at an eligible institution who has not successfully completed the first year of an eligible undergraduate flight education and training program— (aa) $21,500, if such student is enrolled in such a program whose length is at least one academic year in length