This is a pre-solicitation notice for the repair of one butterfly valve and two fuel control assemblies for a Foreign Military Sales case to Korea. The work is currently designated as sole source to Honeywell Limited as the OEM, but the agency will consider capability statements, proposals, or quotations from all responsible sources. A prospective bidder must be a Government-approved source for these specific parts, and the time required for new source approval typically precludes delaying an award. Interested parties must submit specific company and technical capability information to the listed Point of Contact. The Government intends to negotiate under sole source authority but will consider all responses received within 45 days of the synopsis publication.