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)
CAMERA
N/A
LENS
APERTURE
SHUTTERSPEED
ISO
No camera details available.
This photograph is considered public domain and has been cleared for release. If you would like to republish please give the photographer appropriate credit. Further, any commercial or non-commercial use of this photograph or any other DoD image must be made in compliance with guidance found at https://www.dimoc.mil/resources/limitations, which pertains to intellectual property restrictions (e.g., copyright and trademark, including the use of official emblems, insignia, names and slogans), warnings regarding use of images of identifiable personnel, appearance of endorsement, and related matters.