This is a market research request for potential sources capable of providing quarterly maintenance and repairs on specific cooling air and oil sled models at Dyess Air Force Base in Abilene, Texas. The requirement also includes the removal of an existing oil sled and the installation of a new, separately procured unit. No budget or project timelines are specified in this preliminary notice. Interested parties should review the attached draft documents for detailed requirements. All responses and questions should be directed to the listed Air Force contacts.