Dr Phil Marter asked me to add this:
The project is a collaboration between researchers and students from English, German and Dutch universities, together with local enthusiasts from the Hessen area. The project is being run by HessenArchäologie. I think its worth adding this just so everyone knows its being taken care of properly. Also a small correction, the Steinheim you have mentioned is the larger of two that exist, but the Steinheim where the crash is, is a much smaller one near Hungen.