NAVAIR at Patuxent River, MD intends to modify an existing Sustaining Engineering and Support contract on a sole-source basis with Northrop Grumman Systems Corporation. The modification adds highly specialized sustainment support for Royal Australian Air Force-unique MQ-4C Triton UAS, including unique engineering test procedures, network configuration documentation, and engineering and technical reports. The sole-source rationale is that NGSC is the only designer, developer, manufacturer, integrator, and producer of the MQ-4C Triton air vehicles and ground stations and has the requisite design, operation, and maintenance knowledge. This notice is for information only and is not a request for competitive proposals, but responsible sources may submit capability statements for the government’s consideration of whether to compete. Companies interested in subcontracting opportunities should contact Northrop Grumman’s Vicky Harper-Hall via the provided email or phone.