U.S. Air Force investigators are trying to determine how a shipment of sensitive aircraft communications parts wound up on an Internet auction site last week, according to Newsweek.

　　　An antiques dealer put the parts, which are used in the SR-71 spy plane, the F-16 fighter, KC-10 aerial tankers and C-5 Galaxy giant cargo jets, up for sale on the eBay auction site after buying them for in an unclaimed-property sale from a shipping company, the magazine said on Sunday.

　　　The dealer, Norb Novocin, said he discovered after buying the crate-load of parts in Florida that 11 of the 18 items were coded "D," which demands total destruction and does not permit public ownership in a condition other than scrap metal.

　　　The parts had lain in a storage warehouse for 12 years after getting lost while being shipped from Dover Air Force Base in Delaware to a supply depot in Georgia. Novocin informed the depot, who said they did not want the parts and suggested he sell them on eBay.

　　　During a seven-day auction on eBay that ended on May 29, Novocin says he sold four items, including an X-Band Weather Radar Modulator for and a high-frequency radio circuit card for .