Retirement ceremony for Robert "Bob" Major Published June 17, 2009 VANCE AIR FORCE BASE, Okla. -- Congratulations and good luck Robert "Bob" Major, 71st Operations Group simulator quality assurance. Thank you for your outstanding service to Vance and your country. Time In Service: 25 years Retirement ceremony: At 11 a.m., June 25, 2nd Floor, Bldg. 672. A reception will follow.