True, but it goes a little deeper than that.1. A C130 in the US had the wings come off a few years back, and the resultant investigation determined that some planes could not withstand the rigors of water bombing and used planes would further aggravate that issue as they were worn out a bit.
The 130 was and "A" series manufactured in 1956 was pulled out of a military bone yard after they'd worn it out, sold for $1.00 and had a tank system installed.
Years of competition in the bid process that took advantage of the fact the entire US aerial fire fighting fleet is privately owned drove most companies bankrupt or to the brink of bankruptcy. Something had to give and 3 guesses what that was.

