Just to be clear, VVHA (can't you get a shorter handle)
The crash was caused by the pilots flying the aircraft into the ground. There is no dispute about that fact.
The form of your first sentence above implies that the pilots were in control of the CH2 at the time of impact. There is no conclusive evidence that that was the case, and a great deal to imply that it might not have been the case. Therefore, your second sentence above is false.
If your first sentence was corrected to 'The crash occured when the aircraft flew into the ground' then agreed, there is no dispute.