Airman 1st Class Juan Arias, a 364th Training Squadron hydraulic system maintenance apprentice, looks back at his classmate, Airman Joshua McAfee during a progress check at Sheppard Air Force Base, Texas, March 15, 2018. Arias and McAfee are both in block three of eleven and are testing the hydraulic systems in a flight control simulator. Arias acting as the pilot in the cockpit and McAfee acting as the safety observer there to make sure everything is running smoothly before the pilot can take off. (U.S. Air Force photo by Airman 1st Class Pedro Tenorio)
Airman 1st Class Gabriel Smith, 364th Training Squadron hydraulics apprentice course student, changes out the booster reservoir on March 15, 2018, at Sheppard Air Force Base, Texas. The booster reservoir holds hydraulic fluid for the hydraulic systems and is responsible for providing fluid to three primary flight controls. Smith is on block five of eight and is scheduled to graduate on April 11. (U.S. Air Force photo by Senior Airman Robert L. McIlrath)
Airman 1st Class Hector Ogalde-Carmona, kneeling, and Airman Brandon Renner, 364th aircaft electrical-environmental apprentice course students, work on top of a jet at Sheppard Air Force Base, Texas, March 15, 2018. Ogalde-Carmona and Renner are replacing a check valve. The check valve is to stop hot air originating from the engine from entering the cockpit. (U.S. Air Force photo by Airman 1st Class Pedro Tenorio)
Tech. Sgt. Kyle Brislin, 364th Training Squadron electrical and environmental apprentice course instructor, explains to his students how to properly ensure an aircraft is safe for an internal or electrical power source on March 15, 2018, at Sheppard Air Force Base, Texas. Failure to ensure the aircraft is safe for power will run the risk of overloading the systems on the aircraft and frying the components. (U.S. Air Force photo by Senior Airman Robert L. McIlrath)
Airman Alexander Love, a 364th Training Squadron hydraulic systems maintenance apprentice course student, reads from a binder at Sheppard Air Force Base, Texas, March 15, 2018. Love is participating in a progress check for HSM apprentices in block 3 of 11. Love is playing the part of the operations check director, where he would read scenarios to his classmates who would then have to do the correct procedures for each scenario. (U.S. Air Force photo by Airman 1st Class Pedro Tenorio)
Airman Jonathan Vazquez, 364th Training Squadron hydraulic apprentice course student, removes the aileron booster assembly in a C-130, March 14 at Sheppard Air Force Base, Texas. The aileron booster assembly is responsible for the flight control the gives the aircraft the ability to roll left or right. There are required to be changed out every four to six months depending on usage. Vazquez and his classmates are on block five of eight and are scheduled to graduate on April 11. (U.S. Air Force photo by Senior Airman Robert L. McIlrath)
Staff Sgt. Eric Lindahl, a 364th Training Squadron aircraft electrical-environmental instructor, talks to his students at Sheppard Air Force Base, Texas, March 15, 2018. Lindahl, who just became an instructor the same day, talks to the E-E apprentices about the oxygen regulator in the cockpit. The regulator is connected to a green tank that is located directly below the pilot inside the aircraft's nose. Lindahl also teaches the apprentices how to replace the regulators. (U.S. Air Force photo by Airman 1st Class Pedro Tenorio)
Airman 1st Class Gabriel Smith, 364th Training Squadron hydraulics apprentice course student, changes out the booster reservoir on March 15, 2018 at Sheppard Air Force Base, Texas. The booster reservoir holds hydraulic fluid for the hydraulic systems and is responsible for providing fluid to three primary flight controls. Smith is on block five of eight and is scheduled to graduate on April 11. (U.S. Air Force photo by Senior Airman Robert L. McIlrath)
Airman Alexander Love, pointing, and Airman Joshua McAfee, 364th Training Squadrons hydraulic systems maintenance apprentice course students, check their multimeter at Sheppard Air Force Base, Texas, March 15th, 2018. The multimeter is used to check the continuity for each of the systems in the flight controls simulator. McAfee would have to measure the power to make sure each flap, speed brake, or tail light is getting the right amount of power. (U.S. Air Force photo by Airman 1st Class Pedro Tenorio)
As 364th Training Squadron hydraulic apprentice course students, Airman 1st Class Andrew Gladden and Airman Jonathan Vazquez learn how to properly remove and install the aileron booster assembly in a C-130, March 14 at Sheppard Air Force Base, Texas. The aileron booster assembly is responsible for the flight control that gives the aircraft the ability to roll left or right. They are required to be changed out every four to six months depending on usage. (U.S. Air Force photo by Senior Airman Robert L. McIlrath)