...OVERVIEW + American Express Credit Account Master Trust's issuance is an ABS transaction backed by a pool of receivables generated by American Express credit card accounts and pay-over-time revolving credit features associated with charge card accounts that are owned by American Express Centurion Bank or American Express Bank FSB. + We assigned our preliminary ratings to the class A and B certificates from series 2017-6, 2017-7, and 2017-8. + The preliminary ratings reflect our view of the transaction's credit support, underlying payment structure and cash flow mechanics, and the legal structure, among other factors. DALLAS (S&P Global Ratings) Oct. 23, 2017--S&P Global Ratings today assigned its preliminary ratings to American Express Credit Account Master Trust's $521.429 million, $521.429 million, and $259.340 million series 2017-6, 2017-7, and 2017-8 certificates, respectively (see list). The certificate issuance is an asset-backed securities transaction backed by a pool of receivables...