This is a pre-solicitation notice for a five-year, cost-plus-fixed-fee contract intended for The Boeing Company to develop, deliver, and sustain the Acoustic Operational Flight Program (AOFP). The work involves critical software services to maintain and enhance acoustic capabilities for several aircraft, including the P-8A, MH-60R, and MV-22. The contract is planned on an other-than-competitive basis, citing Boeing as the only responsible source with the necessary technical expertise and data. The notice is for informational purposes only and is not a request for proposals. Interested vendors may submit a written response for government consideration.