The Department of Defense, through the Naval Air Warfare Center Aircraft Division, is seeking to negotiate a sole source contract with Indra Air Traffic, Inc. for the procurement of Instrument Landing System (ILS) hardware, software, repair parts, services, training, and other navigation equipment, specifically to support systems like the AN/GRN-33(V). This procurement is critical as Indra Air Traffic, Inc. is the sole provider with the necessary technical data, manufacturing rights, and expertise to deliver the required components and spares for the ILS. The Government plans to establish a five-year Basic Ordering Agreement with Indra Air Traffic, Inc., and interested parties must direct their responses to Lauren Clemmens at lauren.a.clemmens.civ@us.navy.mil by the specified response date and time.