Presolicitation DEPT OF DEFENSE, DEPT OF THE NAVY is planning to procure services for the CY2025 F135 COMPONENT IMPROVEMENT PROGRAM. This program aims to provide engineering support for in-service engines of the F-35 Lightning II aircraft. The services will include maintaining flight safety, correcting deficiencies, improving operational readiness, reliability, maintainability, and affordability, as well as testing engines and components. The procurement will be awarded to Raytheon Technologies Corporation, Pratt and Whitney Military Engines on a sole source basis. The order is expected to be awarded by the end of the first quarter of fiscal year 2025 and will support the F-35 U.S. Services, Cooperative Program Partners, and Foreign Military Sales Customers. This notice of intent is not a solicitation, but all responsible sources may submit a capability statement, proposal, or quotation for consideration by the U.S. Government. For subcontracting opportunities, interested parties can contact Raytheon Technologies Corporation, Pratt and Whitney Military Engines.