The Department of Defense, specifically the Department of the Air Force, is seeking sources for preventive maintenance services on Thermo Fisher Scientific Instruments at Tyndall Air Force Base in Florida. The procurement aims to ensure the operational integrity of critical laboratory equipment, including Gas Chromatograph-Mass Spectrometers and Scanning Electron Microscopes, through scheduled maintenance and emergency repair services. Contractors will be required to provide all necessary labor, tools, and parts for annual preventative maintenance, with options for either an Essential Support Plan or a Limited Support Plan, emphasizing the importance of maintaining high standards for equipment crucial to the Air Force's mission. Interested parties can contact Cleville Yarbrough at cleville.yarbrough@us.af.mil or A1C Fidencio Posadas at fidencio.posadas@us.af.mil for further details, as this notice is a Sources Sought and not a request for proposals at this time.