Correction of event description: examination of the returned device and the broken-off footplate showed that the footplate broke off in a single piece, not several pieces as implied by the initially reported description of the event.The device was subject to microscopic examination by the manufacturer.Visible grinding marks on the slider, handle and tip indicate that it had been repaired and modified by an unauthorized and unknowledgeable third party.The foot plate had been ground by the repair site, reducing material stability and increasing the risk of breakage.This effect was augmented by modification of the limit stop of the handle, permitting greater pressure to be applied to the foot plate during use than intended by the device manufacturer.Manufacturing records were reviewed and no anomalies found.Hardness testing showed that the returned device conformed to specifications.
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