It happens. A US MCKC 130 Torres self apart somewhere over the south United States a couple of years ago. A firefighting model shed its wings, there have been other accidents. But yes. They do tear themselves apart. Usually maintenance is the culprit. And this is an e-model, they are currently on the J model I believe. This was not a new one.
https://theaviationgeekclub.com/the-sad-story-of-tanker-130-the-c-130-whose-wings-fall-off-during-the-2002-fire-season/