This is a sources sought notice for market research, not a solicitation, to support the NAWCAD WOLF ATC&LS Division in ensuring Navy air traffic control and landing systems remain operable through 2040. The requirement involves depot, hardware, maintenance, software sustainment, in-service engineering, installation, integration, and verification support, primarily for the Joint Precision Approach and Landing System (JPALS). Performance is anticipated to be at the contractor’s facility, with contract award expected in March 2027. No budget amount is specified. The government intends to pursue a sole source contract with Collins Aerospace as the OEM, but is seeking capabilities statements from other vendors by 08 May 2026.