By Paula Burkes Business Writer pburkes@oklahoman.comA buzz of activity surrounds a KC-135 aerial refueling tanker, which sits atop secure jacks on the shop floor in Building 3001 at Tinker Air Force Base. The aircraft — crucial to the U.S. Air Force's good fight in places such as Iraq, Afghanistan and Syria — has been pulled from service for its five-year programmed maintenance. Every inch of the plane is being repaired or replaced with new parts, so it will be virtually new when it's reinstated to service.Read more on NewsOK.com