DLA Images

41st maintainers reach perfection
An inspection checklist is marked with a black letter, a marking of certifying that the aircraft has zero discrepancies and is considered operationally perfect. After flying nearly 5,000 flying hours over its 20-year life span, aircraft A6773 received its first black letter initial on July 6, signifying the first the 23d Maintenance Group has seen since 2007. (U.S. Air Force courtesy photo)