BB6
Yes XM597 (now residing at East Fortune) diverted to Rio with a U/S probe.
On landing they had <2000lbs of fuel remaining (not enough for 1 visual circuit!)
The crew were held for 9 days and only released because the Pope was due to land at the same airfield the following day (Imagine the media furore if JP2 was kissing the tarmac with an impounded Vulcan in the background!)
One Shrike missile was hung-up, and the Brazilians kept it.
XM597 sports 2 shrikes and a Brazilian Flag as it's nose-art!