"bud" wrote:
I recently found out that 2 friends of mine small plane went down
somewhere in Columbia South America. They were 2 Americans on a
long-planned and -prepared trip to the Amazon.

I've tried some online searches, but I haven't been able to find any
confirming information.

If anyone has suggestions of how to search for this, I would appreciate
them.

All I can suggest is this site:

http://www.ntsb.gov/ntsb/query.asp

Then select "Columbia" for the country and click on the "Submit Query"
button.