This is a sole-source solicitation for the repair and overhaul of a specific flight data recorder (Part Number 1493100-2201) to a Ready for Issue condition. The work must be performed at the L3Harris Aviation Products Inc. facility located at 5353 52nd Street SE, Grand Rapids, MI 49512-9702. The contractor is responsible for all facilities, labor, materials, and special tooling, as no Government Furnished Property will be provided. Proposals must remain valid for 120 days, and the Government requires source approval, meaning unapproved offerors must submit specific data with their proposal to be considered.