Changes and Modifications
Airman 1st Class Toni Petty and Senior Airman Nicholas Chronister, 2nd Maintenance Squadron Aerospace Ground Equipment flight, perform a Time Compliance Technical Order on Barksdale Air Force Base, La., Nov. 13. TCTOs are modifications or updates to equipment to better adhere to safety standards. (U.S. Air Force photo/Airman 1st Class Andrew Moua)(RELEASED)