LONDON (Standard&Poor's) Oct. 5, 2005--Standard&Poor's Ratings Services said today that it placed its 'A' long-term and its 'A-1' short-term corporate credit ratings on Irish airport operator Dublin Airport Authority PLC (DAA) on CreditWatch with negative implications. At the same time, the 'A' long-term senior unsecured debt rating on the DAA Finance PLC (formerly Aer Rianta Finance PLC) €250 million, 6.15% bond issue (guaranteed by DAA) was placed on CreditWatch with negative implications. The CreditWatch placement follows the publication of the second determination on airport charges by the Irish Commission for Aviation Regulation (the Commission) on Sept. 29, 2005, which proposes maximum airport charges for Dublin Airport for the 2006-2009 period. The Commission concluded that DAA's access