Marines: ‘One-in-a-million’ malfunction caused artillery shell explosion over I-5 in SoCal

The findings come from a newly released Marine Corps report that’s over 600 pages long. That report determined that the mishap was the result of a malfunction in the artillery’s fuze, which electronically controls the timing of detonation. “The M767Al fuze is extremely reliable, with only one malfunction in its service history, in 2017, that was ultimately determined to be caused by an external factor,” the report said. “It is manufactured to a tolerance of one defect in a million.” ... The report ruled out wrongdoing by Marines, interference by other unmanned aerial systems and birds. Instead, the report suggested...