NEW YORK--(BUSINESS WIRE)--Fitch Ratings affirms the senior and subordinate notes issued by Pennsylvania Higher Education Assistance Agency (PHEAA) 2006-2 Trust Indenture at 'AAAsf' and 'AAsf', respectively. The Rating Outlook remains Stable. KEY RATING DRIVERS High Collateral Quality: The trust collateral consists of 100% of Federal Family Education Loan Program (FFELP) loans. The credit quality of the trust collateral is high, in Fitch's opinion, based on the guarantees provided by the transa