The Naval Air Systems Command intends to award a sole-source delivery order to Rockwell Collins, Inc. to provide and integrate a Flight Management Function Application for the T-45 Mission Computer Alternative. The work involves resolving software deficiencies using the contractor's existing commercial solutions and integrating the application to pass navigational data. The justification for the sole-source award is that Rockwell Collins is the original developer and the only company with the necessary data rights, technology, and documentation. The performance location is not specified in the provided description. This is a presolicitation notice, not a request for proposals, but companies may submit capability statements for consideration.