The NJ-22 is the trainer version of the J-22. This one flew first as 25505 with the Yugoslav Air Force from the early 1980s and was transferred to the Serbia and Montenegro Air Force in 1992. After its service life was over it went to the storage area of the Muzej Vazduhoplovstva Beograd where it was first noted in Jun-1997. Other aircraft visible are left of it IJ-22 25719 and NL-14 (MiG-21US) 22953, in front of it the fin of IJ-21 24401, the whole J-21 24126, the aft fuselage of J-21 24156 and the fin of J-20 30144.