HUNTSVILLE, Ala. -- Alabama faces a Dec. 10 deadline to respond to Boeing Co., which is seeking proposals from several states hoping to land an aircraft assembly plant.

Huntsville Mayor Tommy Battle has said the community is among several cities being considered for a 777X assembly site.

Boeing said it would consider a new location to build the airplane after union members rejected a proposed contract in Seattle last month.

Boeing already owns about 300 acres at the Huntsville International Airport and the site is large enough to accommodate the needed 1 million square feet of production space, AL.com reported .

Alabama earlier landed an Airbus plant in Mobile with an incentive package worth about $158.5 million.

A gubernatorial aide in Washington state has said that state will likely get competition from places including Alabama, where unions have less of a foothold.

Boeing executives say a decision on a manufacturing location could come by early next year, and Battle said Huntsville could be a good choice since the city is an aeronautical hub and home to engineers who worked on other Boeing aircraft.