NAVSUP Weapon Systems Support (NAVSUP WSS) Philadelphia seeks eligible contractors to repair and/or modify a Head-Up Display Unit, P/N 1500-2360-001, NSN 6610015522124, including labor, materials, parts, and facilities. The Government intends to solicit only one source, S&K Aerospace, under FAR 6.302-1 because it lacks or cannot provide the data needed for repair or manufacture. All responsible sources may identify their interest and provide capability statements, though this notice is not a request for competitive proposals. Source Approval is required, and NAVSUP WSS will not delay award while Source Approval is pending. Non-approved sources must include the information detailed in the NAVSUP-WSS Source Approval Information Brochure for Repair with their proposal.