The Naval Air Systems Command intends to sole-source a modification to an existing delivery order with Rockwell Collins in Cedar Rapids, IA, to add quantities for A & B Kits for the C/KC-130T Control Display Navigation Unit. This sole-source action is justified because Rockwell Collins is the original developer and retains all data rights, making them the only capable source. Performance of the work will occur at the contractor’s facility in Cedar Rapids, Iowa. This is a presolicitation notice, not a request for proposals, and no contract will be awarded solely based on responses. Interested parties may submit capability statements to the contracting officer for consideration.