The easiest way to search aircraft accidents is at Aviation Safety Network. Each report has a link to the relevant NTSB file. This database also contains accident/incident files from around the world.
The NTSB keep aircraft accident/incident records that occurred in the USA. Databases such as this can be extremely helpful in recognizing trends and enhancing safety.
Alternatively:
Click the first field and select "Aviation Fields", then "Aircraft Info", then "Aircraft Model". Type is the model "Bearhawk" and enter. It should return a list of accidents/incidents that occurred in the USA.
The + sign on the left of each report than then be used for a short precis, or the PDF file will provide the full report.
