What makes church buses crash, are people that can drive them, but have no clue as to what a pre-trip, or preventative maintenance is. People drive these kinds of vehicles, and while they need a CDL, they never check the vehicle out. a nail in a tire can cause the layers of rubber to delaminate, even if it's not leaking. Or a low tire, can get hot, and blow, come off the rim, and these drivers have no clue how to handle the emergency, they panic, the bus flips.