Airline pilots operate into mountain airports safely on a regular basis. The more complex ones require special qualification training. That being said, it is still quite possible that the pilot in this accident had little if any mountain flying experience in light aircraft or jet aircraft. His...
I agree with the poster that stated that they were likely well beyond Ingram Falls. I think I found the exact spot where the wreckage was found based on some nearby rock formations seen in photos at the south end of Ingram Basin.