Wikipedia overview indexed “Frederick Valentich disappearance” in connection with the public record around Frederick Valentich disappearance, a 1978 UFO/UAP dossier centered on Bass Strait, Australia. The source is useful because it fixes a checkable part of the record: who published the material, what topic it addressed, and how it connects to the timeline, witness layer, official response or later research around the case.
The accessible source text states: Frederick Valentich was an Australian pilot who disappeared while on a 125-nautical-mile (232 km) flight in a Cessna 182L light aircraft, registered VH-DSJ, over Bass Strait. On the evening of Saturday 21 October 1978, twenty-year-old Valentich informed Melbourne air traffic control that he was being accompanied by an aircraft about 1,000 feet (300 m) above him and that his engine had begun running roughly, before. In the archive context, that material is treated as a primary or secondary record to be compared with the case chronology rather than as a standalone proof of an extraordinary origin.
For Frederick Valentich disappearance, the relevant evidence categories include pilot radio transmission, missing aircraft, official search. The source should therefore be read alongside the dossier's witness accounts, timeline, evidence analysis and skeptical notes, especially where the material concerns official statements, video records, archival summaries or media reports.
The evidence boundary remains important. A source page can document that a report, document, video or database entry exists, but it does not by itself establish that the object or event was anomalous. This local record preserves the source's role in the case while keeping unresolved claims separate from confirmed facts. Original source URL: https://en.wikipedia.org/wiki/Disappearance_of_Frederick_Valentich