The Ju 388 was flown for 10 hours of flight tests at Wright Field near Dayton, Ohio with the "foreign evaluation" serial number FE-4010 (later changed to T2-4010).
Denna Ju 388 gjorde 10-timmars testflygning vid Wright Field i närheten av Dayton, Ohio under namnet FE-4010 (senare ändrat till T2-4010).