In the aviation industry, B046 refers to the formal authorization required for aircraft to fly with reduced vertical separation.
An application letter identifying the aircraft and responsible personnel. b046.mp4
There is no confirmed "b046.mp4" mystery or horror story. The term may be confused with other famous internet "file name" mysteries, such as: FAA B046 RVSM LOA Job Aid In the aviation industry, B046 refers to the
: While the U.S. has streamlined some RVSM requirements, most foreign countries still require a specific B046 LOA for aircraft to operate in their RVSM airspace. Internet Mystery/Creepypasta Clarification In the aviation industry