>...do they fail?
>Greensboro, NC USA
Sorry for the delay. Been away.
The TWO I saw, including one of my own, failed in the quill section of the stem, above the expander area, and above the steerer tube and headset hardware, in plain sight. Expander bolt held the pieces together, but loss of directional control is always an adventure.
As for somebody's comment about the relative odds of AVA stem failure and being struck by lightning, the point here is that the odds can be easily reduced significantly for both, if one exercises even the slightest sense of self preservation. And it costs you nothing. All we can do here is share information and ideas. Do with it what you will. If you want to dance around under the lone tree during a lightning storm while waving an AVA stem / lightning rod high over your head, well, that is your choice. Just don't stand near me when you do it. Ten feet from where lightning did strike once was close enough for me. Very impressive stuff, lightning.
Walking on thin ice, so I might as well dance Larry "AVA free" Osborn Bruceton Mills WS