Did some research...
It was a HS 125-800, carrying Rwandan President Juvenal Habyarimana over Angola. Shot at by MiG 23 of Angolan air force. First missile struck as described in my previous post, second one (luckily) locked on to falling separated engine.
My memory served me well, it seems, and I was correct in having been shown the A/C back at Chester, during rebuild, whilst in the RAF.
HABYARIMANA was not so lucky in 94 when his Falcon 50 was downed by a SAM.
