The United States Government's fleet of C-20 Gulfstream aircraft has been fully maintained and supported by Sabreliner since 1995.

Sabreliner's responsibilities include:

• Flight-line and operator-level maintenance at Government sites
• Parts and components stocking and management at each Government site, as well as central, overall material procurement and management for the program
• Aircraft depot maintenance, modifications, and painting at Sabreliner's facility

Sabreliner Corporate Procurement accomplishes all purchasing tasks under the contract.

On-site support and depot-level engine maintenance are provided by major subcontractors, including Lear Siegler Services (LSI), under Sabreliner's direction.

Sabreliner's experienced Product Management staff continually coordinates the efforts of all program participants, and works to ensure that the fleet is mission-ready at all times, consistently surpassing program requirements.