Fitch Ratings Affirms 18 SASCO RMBS Ratings from 3 Securitizations.

NEW YORK -- Fitch Ratings has affirmed 18 classes of Structured Asset Securities Corp. (SASCO) residential mortgage-backed certificates, as follows:

Series 2002-1A Pool 1:

--Class 1A affirmed at 'AAA';

--Class B1-I affirmed at 'AAA';

--Class B2-I affirmed at 'AA+';

--Class B3-I affirmed at 'BBB+';

--Class B4-I affirmed at 'BBB-';

--Class B5-I affirmed at 'BB'.

Series 2002-1A Pool 2:

--Class 2A affirmed at 'AAA';

--Class B1-II affirmed at 'AAA';

--Class B2-II affirmed at 'AA-';

--Class B3-II affirmed at 'BBB+';

--Class B4-II affirmed at 'BB+';

--Class B5-II affirmed at 'B+'.

Series 2002-1A Pools 3, 4 and 5:

--Classes 3A, 4A, 5A affirmed at 'AAA';

--Class B1-III affirmed at 'AAA';

--Class B2-III affirmed at 'AAA';

--Class B3-III affirmed at 'BBB+';

--Class B4-III affirmed at 'A+';

--Class B5-III affirmed at 'A-'.

The collateral for Pool 1 consists of conventional, fully amortizing residential mortgage loans, each of which have a fixed interest rate for the first five years from the date of origination, after which the rate adjusts semi-annually. Pool 2 consists of conventional, fully amortizing residential mortgage loans, each of which have an interest rate which adjusts semi-annually from the date of origination. Pool 3 consists of conventional, fully amortizing residential mortgage loans, each of which have a fixed interest rate for the five years from the date of origination, after which the rate adjusts annually. Pool 4 consists of conventional, fully amortizing residential mortgage loans, each of which have a fixed interest rate for the first seven and ten years from the date of origination, after which the rate adjusts annually. Pool 5 consists of conventional, fully amortizing residential mortgage loans, each of which have a fixed interest rate for the first three and five years from the date of origination, after which the rate adjusts annually.

The affirmations reflect credit enhancement consistent with future loss expectations and affect $25.1 million of outstanding certificates. The pools are 64 months seasoned. The pool factors (current principal balance as a percentage of original) range from approximately 1% to 4% outstanding.

Classes B3-I, B3-II, and B3-III of Series 2002-1A Pool 1, Series 2002-1A Pool 2, and 2002-1A Pools 3-5, respectively, are known as component bonds.

Each group of components (B3-1, B3-II and B3-III for example) is backed by a separate mortgage pool or group of pools. Although each mortgage pool or group of pools performs differently, since the component bonds are not severable, each component bond reflects the performance of the weakest of all of its fellow components.

Further information regarding current delinquency, loss and credit enhancement statistics is available on the Fitch Ratings web site at www.fitchratings.com.

Fitch's rating definitions and the terms of use of such ratings are available on the agency's public site, www.fitchratings.com. Published ratings, criteria and methodologies are available from this site, at all times. Fitch's code of conduct, confidentiality, conflicts of interest, affiliate firewall, compliance and other relevant policies and procedures are also available from the 'Code of Conduct' section of this site.