3 U.S. Firefighters Killed In Plane Crash In Australia

The transcript discusses the efforts of firefighters, including three Americans, who were helping combat bushfires in Australia. They were on board a Hercules air tanker that crashed near Canberra. The firefighters were part of Coulson Aviation, contracted by the New South Wales Rural Fire Service. Despite recent rain, rising temperatures and winds have reignited fires. Canberra Airport was temporarily closed due to nearby fires. The crash resulted in 33 fatalities, and the Australian Transport Safety Bureau is investigating. Coulson Aviation has grounded its large aircraft as a precaution.

How many people have been killed in the bushfires according to the text?

What precaution is Coulson Aviation taking in response to the crash?