Fitch Affirms 5 Classes from 2 Pacific Southwest Bank Subprime Transactions

Business Wire, June 4, 2008

NEW YORK -- Fitch Ratings has taken the following rating actions on Pacific Southwest Bank (PSB) mortgage pass-through certificates. Unless stated otherwise, any bonds that were previously placed on Rating Watch Negative are now removed.

PSB 1997-2

-- A-5 affirmed at 'AAA';

Deal Summary

-- Originators:

-- 60 day Delinquency: 6.07%

-- Realized Losses to date (% of Original Balance): 16.69%

PSB 1997-4

-- M-1 affirmed at 'AA';

-- M-2 affirmed at 'A';

-- B-1 affirmed at 'BBB';

-- B-2 affirmed at 'BB'.

Deal Summary

-- Originators:

-- 60 day Delinquency: 6.64%

-- Realized Losses to date (% of Original Balance): 15.29%

Additional details are available in the following research, available at www.fitchratings.com:

-- 'Downgrade Criteria for Recent Vintage U.S. Subprime RMBS' (Aug. 8, 2007);

All of Fitch's ratings criteria for US subprime RMBS available at www.fitchratings.com/subprime. For a list of deals currently under analysis please visit www.fitchratings.com/smartview.> Further information regarding current delinquency, loss, and credit enhancement statistics is also available 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.