After Kyiv was liberated from the Nazis, the plant was returned there, where until the end of the war it overhauled PO-2 aircraft and assembled Yak-3 and Yak-9 fighters from parts manufactured elsewhere. In 1944 the plant was renamed "Plant 473", or "Organization Mailbox 11". After the end of the war the plant was moved to the present location in Sviatoshin, which it had started to develop before 1941.