Custom Aircraft Cabinets, a business aircraft cabinetry and upholstery supplier, is expanding into a new manufacturing plant in Sherwood, Ark., about 12 miles from its existing facility. The move represents a $5.9 million investment and is expected to double the number of jobs to more than 290 workers. It will also allow CAC to “successfully approach other segments of the aircraft interiors market.” The firm expects the move to be complete by December, with no effect on production or deliveries.