U.S. Air Force Staff Sgt. Daniel Rivera, 1st Maintenance Group maintenance training instructor, demonstrates the proper procedures for hot pit refueling for Airmen involved in each part of the process during a training class at Joint Base Langley-Eustis, Va., Sept. 13, 2016. The maintenance training section instructors teach approximately 190 courses each year to Airmen from the 1st MXG and the 192nd Maintenance Group. (U.S. Air Force photo by Staff Sgt. Teresa J. Cleveland)

U.S. Air Force Tech. Sgt. Brian Price, 1st Maintenance Group maintenance training instructor, demonstrates the proper use of a flexible borescope to U.S. Air Force Tech. Sgt. Riyyad Schools, 1st Maintenance Squadron jet engine intermediate maintenance NCO in charge, during a class at Joint Base Langley-Eustis, Va., Sept. 12, 2016. The 1st Maintenance Group training section is responsible for the combat training of all maintenance personnel assigned to the 1st MXG, as well as some sections of the 192nd Maintenance Group. (U.S. Air Force photo by Staff Sgt. Teresa J. Cleveland)

U.S. Air Force Staff Sgt. Daniel Rivera, 1st Maintenance Group maintenance training instructor, instructs a class on “hot pit” refueling procedures at Joint Base Langley-Eustis, Va., Sept. 13, 2016. Hot pit refueling systems allow aircraft to land and refuel while the engines are still running. (U.S. Air Force photo by Staff Sgt. Teresa J. Cleveland)

A U.S. Air Force Airman observes a hot pit refueling procedure on an F-22A Raptor training aircraft during training class at Joint Base Langley-Eustis, Va., Sept. 13, 2016. The class, led by trainers from the 1st Maintenance Group training section, teaches maintainers the proper procedures to work with logistics Airmen to refuel aircrafts while the engines are still running, allowing for quicker turnaround for jets to return to flight. (U.S. Air Force photo by Staff Sgt. Teresa J. Cleveland)

U.S. Air Force Staff Sgt. Daniel Rivera, 1st Maintenance Group maintenance training instructor, demonstrates steps Airmen must follow during a hot pit refueling class at Joint Base Langley-Eustis, Va., Sept. 13, 2016. Airmen with the 1st MXG attend between one and six courses through the training section each year, depending on their job requirements. (U.S. Air Force photo by Staff Sgt. Teresa J. Cleveland)

U.S. Air Force Staff Sgt. Daniel Rivera, 1st Maintenance Group maintenance training instructor, demonstrates the proper procedures for hot pit refueling for Airmen in a training class at Joint Base Langley-Eustis, Va., Sept. 13, 2016. The maintenance training section offers 26 courses, ranging from job specific to Air Force requirements such as Self Aid and Buddy Care. (U.S. Air Force photo by Staff Sgt. Teresa J. Cleveland)

U.S. Air Force Staff Sgt. Augustus Joseph, 192nd Maintenance Squadron crash and recovery team member, inspects the core of an engine using a flexible borescope while U.S. Air Force Tech. Sgts. Brian Price, 1st Maintenance Group maintenance training instructor, and Riyyad Schools, 1st Maintenance Squadron jet engine intermediate maintenance NCO in charge, observe his technique at Joint Base Langley-Eustis, Va., Sept. 12, 2016. Maintenance training instructors are responsible for training 2,000 students annually. (U.S. Air Force photo by Staff Sgt. Teresa J. Cleveland)