Speechless.
You are correct, the 214ST that ditched was due to the nut under the mixing levers coming undone and caused progressively less collective until the only direction was down. Bell came up with a mod to cure this.... a thicker locking washer.
The one that went bang was the drag brace breaking... we all thought he was lucky with that one. Both helicopters were put back in service... not sure if they are still in ABZ.