The time frame given by WHBM seems to fit in with the information I have gleaned. I have checked AJJ's Avro book and also BCA Vol 1. VM733 was still flying at Bitteswell in June 54. This was a test bed for a pair of Armstrong Siddeley Sapphire engines: airframe converted by AST Hamble January 1950. Also shown in the Avro book is a photograph of T-102 of the Argentine Air Force. The photograph was taken on 24 May 1960. The aircraft appears to be airworthy/operational. So Wikipedia may well be correct.