This is a sole source requirement for the repair of a specific rotary wing blade, intended for award under an already established Basic Ordering Agreement (BOA). The government lacks sufficient data to contract with any source other than the current one, and the items require Government Source Approval prior to award. Offers from unapproved sources must include all data from the Source Approval Brochure with their proposal to be considered. The performance location is NAVSUP WSS Philadelphia. One or more items are subject to Free Trade Agreements and the World Trade Organization Government Procurement Agreement.