Many C-130s around the world can have their service life extended by having the Center Wing Box replaced. As the main load-bearing component of the C-130’s airframe, it is this structure that usually determines the overall operational life of the aircraft.
Something to think about (again) as Australia wastes taxpayer dollars by retiring C-130H aircraft and even giving some of them to Indonesia.
Indonesia has enough funds to maintain airlift/utility aircraft. They even ordered some new light attack trainers the other day.