[esanamaserrn]

It all depends on number of flight hours. Recently A380 jet engine exploded in mid air and it was so catatrophic that it was a miracle that flying parts dod not kill any of the passengers or people on the ground.

Couple of years back Boeing 777 BA flight from Beijing crash landed in London because their fuel lines froze.

Auto mfgs are constantly issuing recalls because of defects.

As for buildings burning, well depends on the situation. Investigate and learn. What was the cause of the fire. Was it due to renovation works where there is a lot of wood and flamable building materials. Was there welding works being done? Was the fire supression system turned off as part of the renovation? Were the workers properly trained?

If they are doing some welding, they would turn off smoke detectors to prevent the fumes from welding trigger the alarms. SO now you have ignition source and yet no alarms + lots of plywood.