I must get clear of the pod, or risk serious damage upon impact.

Without them, the end of the bar can cause serious injury upon hard impact with soft tissue.

On many of the jumps the cars bent upon impact.

He was hit by a nearby motorcycle and died upon impact.

The old dragon was clearly dead, having twisted his neck upon impact.

All passengers died immediately upon impact, but the Captain's body was never found.

It then crashes down dead, having died instantly upon impact.

This prevents the arms from being injured or broken upon impact.

Crash tests showed those seats moving forward too much upon impact.

It was determined that his heart had stopped immediately upon impact.