Staff Sgt. Dustin Kennedy, 334th Fighter Squadron crew chief, documents the service he provided to an F-15E Strike Eagle at Seymour Johnson Air Force Base, North Carolina, April 21, 2021. Each aircraft has its own service log, ensuring the next person that works on the aircraft knows what has been performed. (U.S. Air Force photo by Airman 1st Class Kimberly Barrera)