Sabreliner maintained and supported the United States Government's fleet of C-20 Gulfstream aircraft from 1995 to 2004.

Sabreliner's responsibilities included:

• 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 accomplished all purchasing tasks under the contract.

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

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