SAN FRANCISCO (S&P Global Ratings) Dec. 30, 2016--S&P Global Ratings revised the outlook to stable from negative and affirmed its 'BB-' long-term rating on Michigan Finance Authority's series 2011 public school academy limited obligation revenue and refunding bonds, issued on behalf of Detroit Service Learning Academy (DSLA). "The outlook revision is based on our view of stabilization in DSLA's enrollment in the past year," said S&P Global Ratings credit analyst Kaiti Wang. "The outlook revision also reflects our view of DSLA's better-than-anticipated financial operations in fiscal 2015, almost break-even operations in fiscal 2016, and projections for fiscal 2017 that include a level of planned capital expenses that we believe will still allow the school to meet its financial covenants," Ms.