Long Beach’s city government wants to lease out five parcels that together encompass roughly 31 acres of land near Long Beach Airport.

The parcels in question are near LGB’s western edge and are also in the vicinity of the now-defunct assembly plant where Boeing Co. workers formerly built C-17 Globemaster III transport aircraft.

“We felt this is our opportunity to start the revitalization of that area,” deputy airport director Juan Lopez-Rios said.

The decision to open the parcels to development follows Boeing Co.’s late 2015 shutdown of its C-17 assembly and the July 2016 decommissioning of two small runways at LGB. City government announced Monday that officials are interested in viewing developers’ proposals for aeronautical developments on the land.

Businesses fitting the criterion of fulfilling an aeronautical purpose include aircraft manufacturers, companies providing support services to the airport or firms with operations that require access to an airfield, Lopez-Rios said. Lease terms would depend upon what kinds of ideas prospective developers bring to the table, but city officials are interested in considering 20- to 40-year long-term agreements for the properties.

Boeing Co. executives have yet to decide whether they will keep the 90 acres of land that was formerly associated with C-17 assembly work, or whether they will make the real estate available to other parties, spokeswoman Cassaundra Bantly said. The aerospace firm may have an announcement to make concerning the site’s disposition at some time in September, she said.