LONDON (Standard&Poor's) Oct. 18, 2002--Standard&Poor's Ratings Services said today it revised the outlook on Irish airport operator Aer Rianta to negative from positive, in light of expected deterioration in its financial profile. The long-term single-'A'-plus and short-term 'A-1' corporate credit ratings on the company were affirmed. At the same time, Standard&Poor's affirmed its long-term single-'A'-plus senior unsecured debt rating on related entity Aer Rianta Finance PLC's €250 million ($246 million) 6.15% bond issue, guaranteed by Aer Rianta. The outlook revision is based on Standard&Poor's expectation that Aer Rianta's financial profile will deteriorate following implementation of airport charges for the period 2002-2006, in accordance with the Commission for Aviation Regulation's initial determination, which