Particularly interesting in that (apparently) the civil version had had spar plates incorporated some time previously as the problem was known about.
In 1953 a Viking (E.A.A IIRC) lost a wing over Pangani ( Tanzania). The loud bang was heard by the locals whose precise recall of the sound sequence was of use to the BOI.
The occupants are buried together in Tanga Christian graveyard. Included are some members of what could have been a slip crew - it appears to have been a positioning flight to Dar Es Salaam. There were also a couple of other occupants who were probably hitching a lift ( including an Israeli).
I think there were corrosion issues involved ,but which sort I don't recall.