Allegheny County Council took action Tuesday that Chief Executive Dan Onorato called "illegal" when it declared war over a $42.5 million debt at Pittsburgh International Airport. Council unanimously backed an ordinance directing the county Airport Authority to pay back the money, which Councilman Chuck McCullough said has been owed for more than a decade. "The airport authority is supposed to be the county's steward," said McCullough, R-Upper St. Clair, a solicitor under former county Chief Executive Jim Roddey. "It is not supposed to be our competitor. It is not supposed to be our enemy."