Thrust Reverse use DHC Dash 8 series

[Tu.114]

While this accident was not to a DH8 but to a Fokker 50, it shows quite well what happens when the prop pitch is moved below the flight beta range.

Luxair Flight 9642 - Wikipedia, the free encyclopedia

The official report is to be found under http://www.gouvernement.lu/salle_pre...apport_eng.pdf , should You be interested.

So in a nutshell - this situation is best avoided.