NEW YORK–(BUSINESS WIRE)–(This is a correction of a release published on Dec. 9, 2016. It clarifies that the class B note was not on Rating Watch Negative as stated in the original release and that the Rating Outlook remains Stable.) Fitch Ratings has taken the following rating actions on SLM Student Loan Trust 2003-12: –Class A-5 downgraded to ‘AAsf’ from ‘AAAsf’; removed from Rating Watch Negative and assigned Outlook Negative; –Class A-6 downgraded to ‘AAsf’ from ‘AAAsf’; removed from Ra