As reported
Unknown over Dale Hollow Lake, TN
A witness account on file, unevaluated. Most of the archive rests here, and honestly so.
The report, as filed
High altitude, fast moving object swept across entire horizon less than 30sec with a pulsing "contrail".
Held as-reported from National UFO Reporting Center. Witness text is preserved verbatim, including its spelling; nothing is edited beyond formatting.