Last year, the Charleston County Aviation Authority began the process of selling 320 acres of land near the North Charleston assembly site.
The agency voted to give Boeing first rights of refusal on nearly 500 more acres, as well as an option to buy another 265 acres. Last year Boeing also bought the South Carolina Research Authority office site near its assembly plant.
The 787 has been grounded since mid-January because of a problem with smoldering lithium-ion batteries. The company has proposed a fix to federal regulators and last week conducted a final test on the new design that includes more heat insulation and a battery box designed so that any meltdown of the battery vents hot gases outside of the plane.
None of the 787s that reported battery problems were built in South Carolina.