If you mean carbon fiber----good possibility

It was pilot error--probably from inexperience and not a pair of pilots working as a CREW---high speed approach, landing long, run off the end of runway

runway 2 1/2 feet above sea level, 4800 ft long, probably touched down 1000-1500 feet , no reverse thrust, didn't have stopping room--remember jet engines put out an amazing amount of thrust even at idle, so stopping it was marginal at best---issues here other than BRAKE FAILURE---