SECURITY GROUP 2 A percentage of the Group 2 Principal Distribution Amount may be applied to the Trustee Fee, and the remainder of the Group 2 Principal Distribution Amount (the "Group 2 Adjusted Principal Distribution Amount") will be allocated to FD, until retired. Scheduled Principal Balances: The Scheduled Principal Balances for the Classes listed below are included in Schedule II to this Supplement. They were calculated using, among other things, the following Structuring Range: Class Structuring Range PA, PB, PC and PD  .............................................................................. 100% PSA through 500% PSA Accrual Class: Interest will accrue on the Accrual Class identified on the inside front cover of this Supplement at the per annum rate set forth on that page. However, no interest will be distributed to the Accrual Class  as interest. Interest so accrued on the Accrual Class on each Distribution Date will constitute the Accrual Amount, which will be added to the Class Princi- pal Balance of that Class on each Distribution Date and will be distributable as principal as set forth in this Terms Sheet under "Allocation of Principal." Notional Classes: The Notional Classes will not receive distributions of principal but have Class  Notional  Balances  for  convenience  in  describing  their  entitlements  to  interest.  The Class Notional Balance of each  Notional Class represents the percentage indicated below of, and reduces to that extent with, the Class Principal Balances indicated: Class Original Class Notional Balance Represents SD........................................................................ $  30,000,000 100% of FD (PT Class) SV ........................................................................ 390,000,000 100% of FV  (STP Class) Tax Status:    Single REMIC Series. See "Certain Federal Income Tax Consequences" in this Supplement and in the Base Offering Circular. Regular  and  Residual  Classes:    Class  R  is  a  Residual  Class;  all  other  Classes  of  REMIC Securities are Regular Classes. S-6