I think it is silly to argue such semantics with natural language. We all know what it means when they said "accident." Something unintentional, unexpected, and unfortunate. So why do we need to go off topic and argue whether something was the correct word, when everyone is aware of the meaning implied. In this context, "crash" and "accident" are really the same. The events are random and out of control from the perspective of the airline or passengers, the people who matter in this post.

It's not like we're programming, where (hopefully) 2 != two != "two" != "2"