On Mon, 13 Jan 2003, G.M.Bulley wrote:

> I'm a big fan of replacing it at the least sign of trouble. If you
> haven't replaced it in 25k, test it by throwing it into a deep body of
> water*. If it floats, use it. If not, replace it.

A coworker of mine who was in the Navy called this a "koosh test".  You
drop it over the side, and if it goes "koosh" when it hits the water, it
must be defective.  He said this was a common way of handling persickety
high-tech black boxes from aircrat that had a tendancy to come back with a
note saying "could not duplicate problem" when sent in for repairs.