Bombs Over Bagdad, Or Um, Yuma

A Harrier jet crashed in a Yuma, AZ neighborhood yesterday after the pilot ejected. The jet was carrying four 500 pound bombs and 300 rounds of 25mm ammo. What? OK, I can see having the 25mm on board. If you're training, you might as well be loaded for an intercept in the area you're training in. But, what the fuck reason could you have for carrying four live 500 pound bombs. If it's a weight thing related to training, you wouldn't need live bombs. Perhaps they're flying close air support for the minuteman project.