Oxford Aviation is planning to move its aircraft refurbishment business from Oxford County Regional Airport, Maine, to nearby Sanford Regional Airport, where it will open a 93,000-sq-ft building next spring. The 4,601-foot runway at Oxford County has limited refurbishments to aircraft the size of a Citation V or Beech King Air. The 6,000-foot runway at Sanford Regional will allow the shop to handle aircraft as large as the Gulfstream 550 for refurbishment and exterior paint in the new $10 million facility. A second phase of expansion will permit the company to accommodate even larger aircraft. Oxford’s FBO will remain at Oxford Airport and its maintenance center at Eastern Slope Regional Airport in Freyburg will also remain in place.