A common reference for "071" in a reporting context is the NTSB Final Report for accident WPR16LA071 , which involves a Weight-Shift Control (WSC) aircraft.
Wind was reported as light, and the engine run-up appeared normal before takeoff. Historical & Administrative References 071.jpg
The file identifier "071.JPG" is used by the U.S. Department of War for a famous photograph of Col. Paul W. Tibbets Jr. waving from the cockpit of the Enola Gay before the Hiroshima mission in 1945. A common reference for "071" in a reporting
Wikimedia Commons hosts an Aviation Accident Report image specifically titled after Flight 71. Digital Metadata for 071.jpg 071.jpg