The Department of Defense, specifically the Naval Air Systems Command, intends to award a Basic Ordering Agreement (BOA) to RTX Corporation, Pratt & Whitney Military Engines, for engineering and logistics studies related to the F135 Propulsion System. The procurement aims to support the F135 Modifications Program by conducting investigations and providing sustainment support for the F135 fleet, leveraging Pratt & Whitney's unique expertise as the original designer and manufacturer of the propulsion system. This opportunity is critical for maintaining the operational readiness and performance of the F-35 Lightning II aircraft. Interested parties may submit capability statements, proposals, or quotations within fifteen days of this notice, and should direct inquiries to Alexander Chakrin at Alexander.Chakrin@jsf.mil or George Hubbard at George.Hubbard@jsf.mil.