First Priority Principal Distribution Amount means, with respect to any Payment Date, an amount equal to the excess, if any, of (a) the Class A Note Balance as of such Payment Date (before giving effect to any principal payments made on the Class A Notes on such Payment Date), over (b) the related Adjusted Pool Balance; provided, however, that (i) the First Priority Principal Distribution Amount on the Class A-1 Final Scheduled Payment Date shall not be less than the amount that is necessary to reduce the outstanding principal amount of the Class A-1 Notes to zero; (ii) the First Priority Principal Distribution Amount on the Class A-2a Final Scheduled Payment Date shall not be less than the amount that is necessary to reduce the outstanding principal amount of the Class A-2a Notes to zero; (iii) the First Priority Principal Distribution Amount on the Class A-2b Final Scheduled Payment Date shall not be less than the amount that is necessary to reduce the outstanding principal amount of the Class A-2b Notes to zero; (iv) the First Priority Principal Distribution Amount on the Class A-3 Final Scheduled Payment Date shall not be less than the amount that is necessary to reduce the outstanding principal amount of the Class A-3 Notes to zero; and (v) the First Priority Principal Distribution Amount on the Class A-4 Final Scheduled Payment Date shall not be less than the amount that is necessary to reduce the outstanding principal amount of the Class A-4 Notes to zero.