The Naval Air Systems Command intends to modify an existing delivery order on a sole-source basis to Sikorsky for updating the CH-53K Integrated Computing Platform software suite to support Israeli Airforce CH-53K aircraft. Sikorsky is the only qualified contractor due to its unique knowledge and technical data as the sole designer, developer, and integrator of the H-53 airframe and systems. No budget amount is specified in the notice. The performance location is Stratford, Connecticut, where Sikorsky is based. This is not a request for competitive proposals, but interested parties may express capability for subcontracting opportunities.