The full preliminary report on the Germanwings crash is available in PDF form here:

[dixiegrrrrl]

http://www.bea.aero/en/enquetes/flight.gwi18g/flight.gwi18g.php

It's the first one down, says Preliminary Report, 6 May 2015
just click on the check mark under the Brit flag.

In the report, the page of "Initial Findings" pretty much covers the issue.

Also, there is information about other plane crashes, including Malaysia Flt 370, on the right hand column of the link page.