Standard&Poor's Ratings Services has affirmed its 'A-' rating on the Sevier County Public Building Authority, Tenn.'s series II-D-1 local government public improvement bonds, issued for the Metropolitan Knoxville Airport Authority (MKAA). The outlook is stable. The rating reflects our view of the following credit strengths: Good coverage and a strong liquidity position, which we expect to continue; Good airline diversity, with no carrier holding more than 30% of the market at McGhee Tyson Airport (TYS); and A location at the center of a stable regional economy, which we expect to contribute to stable enplanement trends over the long term. We believe offsetting credit concerns include: Potential variable enplanement trends, given the relatively small enplanement base, although 2014 enplanements
