Jet Aviation Redelivers Refurbished BBJ1 Jet Aviation announced that they have redelivered a refurbished BBJ1 to a customer. At the same time the aircraft had a C-1 check done. The BBJ1 had been out of service for a number of years before it was sold to the owner and subsequently refurbished. Ironically the same long-range Boeing Business Jet was also outfitted by Jet Aviation in 1999 – and happens to be the first BBJ Completions contract the company was ever awarded. The aircraft was recently sold with low air-miles to the current owner, who decided to refurbish it entirely.