NY -- Standard&Poor's CreditWire 6/30/98 – Standard&Poor's today assigned its single-'A' underlying rating (SPUR) to Philadelphia Authority for Industrial Development, Pa.'s $425 million airport revenue bonds series 1998A dated July 1, 1998 due Oct. 1, 2018, issued for the Philadelphia Airport System (PHL). The bonds are scheduled to sell July 14, 1998 and are expected to receive a triple-'A' rating based on bond insurance Standard&Poor's also raised its rating on the development's $116.8 million bonds series 1988 issued for the airport system, to single-'A' from single-'A'-minus. Standard&Poor's also affirmed its single-'A' underlying ratings on Philadelphia's outstanding airport revenue bonds series 1995A and 1997A and B, issued for the airport system. The upgrade
