This is a pre-solicitation notice, not a solicitation, for the CAD/PAD program office. The requirement is sole source to Rockwell Collins and is not set aside for small businesses. The anticipated award date is approximately January 2027, and the procurement includes quantities of TLX lines and kits for the T-6 aircraft. Interested small businesses or others may explore subcontracting opportunities by contacting the firm. All responsible sources may submit capability statements or proposals, but contractors not already qualified must meet qualification requirements per FAR 52.209-1.