Ken and I wrote down the list and I posted it on the Internets in 1998. Back when I was new at this. Since then “The List” has been ascribed to every branch of the U.S. Military, The Delta Maintenance folks in Dallas, American Airlines, NASA, the Jet Propulsion Laboratory and Quantas. I’m sure there are others.
Ever worked on or fly and aircraft with 666 as a tail number? Weird shit happens.