NEW YORK--(BUSINESS WIRE)--On the effective date of Oct. 1, 2015, Fitch Ratings will assign a rating of 'AAA/F1+'; Stable Outlook, to the Metropolitan Washington Airports Authority (MWAA), Airport System Revenue and Refunding Variable Rate Bonds Series 2011A consisting, in the current outstanding amounts, of: $115,485,000 Subseries 2011A-1, $34,015,000 Subseries 2011A-2, and $51,030,000 Subseries 2011A-3(the Bonds). The Long-term 'AAA' rating is based jointly on the underlying long-term 'AA-'(S