Four selected for promotion Published Nov. 16, 2007 By Tinker Public Affairs TINKER AIR FORCE BASE -- As the Air Force moved to the virtual promotions notification, 416 senior master sergeants learned of their promotion to chief master sergeant online. Those selected from Team Tinker are Senior Master Sgts. Greg Amelsberg, 552nd Operations Support Squadron; David K. Bush, 72nd OSS; Leslie B. Doncaster, 966th Airborne Air Control Squadron; and John C. Jasper, 552nd Aircraft Maintenance Squadron. All those selected will be promoted to E-9 beginning in January. The board, which convened Oct 15-25, considered 2,476 senior master sergeants for a 16.80 percent select rate. Last year's selection rate was 16.85 percent.