Dale,
Measured by CASA standards !!, how about drilling a hole in the casing of the prop governor and putting an non-designed screw in order to keep the prop from feathering inadvertently due to low oil pressures inside the casing.....just one example, I have five more on the same aircraft...and a few more on others I have flown.
The drilled hole by the way, rendered the casing completely unfit for re-manufacture.