During the 1990s, Saab carried out modifications to the AJ 37, so that it could operate as a multi-role aircraft, which was designated the AJS 37. Saab had manufactured 108 AJ 37s and of these, 48 were modified. This Viggen was delivered in 1978 to Västgöta flygflotilj F 6 in Karlsborg and then moved to Skaraborgs flygflotilj F 7 in Såtenäs. After conversion to AJS in 1993, the aircraft was delivered to Skånska flygflotilj F 10 in Ängelholm and came to the Flygvapenmuseum for preservation in April 1997.

Formerly operated by F10, this upgraded AJ37 Viggen, was first noted in the excellent Flygvapenmuseum on 10 April 1997.

This machine is now at the museum in Linköping/Malmen.