$(2)$ Boeing grounded its best$-$selling plane, the $737$ MAX, in March $2019$ after two fatal crashes killed $346$ people. These crashes, and the subsequent grounding of planes, significantly damaged Boeing's reputation. Investigators linked faults with the plane's software design to both crashes. Boeing halted production in January $2020$ and has a large inventory of undelivered $737$ MAX planes in storage.

Was this calamity a result of $(1)$ an identifiable internal risk or $(2)$ the threat of an external risk? If yes, what would be the more specific type of a risk $($among internal$/$external types of risks$)?$

Internal: Financial, Operational, and Reputational

External: Compliance, Strategic, and Physical