CHICAGO (Standard&Poor's) Oct. 25, 2011--Standard&Poor's Ratings Services corrected its rating on Morgan Stanley&Co. Inc. Trust's series 2008-3224 floater and residual certificates, relating to Indiana health Facilities Finance Authority's (Ascension Health) series 2005A-8 hospital revenue bonds, to 'AA/A-1' and 'AA' from 'AA-/A-1' and 'AA-', respectively.