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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)


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)

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