The Naval Air Systems Command intends to negotiate a sole-source contract modification with GE Aviation Systems, LTD to increase the ceiling value and add engineering support for a Display Head Assembly upgrade. The work involves technical support, logistics, engineering, testing, and updates for the CH-53K configuration. The performance of services will take place at the contractor's facility in the United Kingdom. This is a presolicitation notice outlining the government's intent, not a request for proposals. While companies may submit capability statements, no contract will be awarded based solely on responses to this notice.