I have a pretty large crack in my bumper that I've had for a while now. Going down the highway one day, probably at around 75 mph.. I hear this super loud noise and all of a sudden i look in my side view mirror because something caught my eye. I see something flying in the air, about 30 feet up. I pull over and notice my drivers side inner fender was gone. It tore my bumper on the way out, but my RA flaps stayed put and in tact.