Risk assessment; the reported event was confirmed via correspondence.It was reported that while loading a tap into the power adapter, one of the taps broke off.The power adapter was still usable and used to finish the case with no issues.Since the adaptor was still usable, there was most likely no issue with the power adaptor.Visual, dimensional and functional analysis could not be performed as the device was not returned.The device was unable to be located in the field.Manufacturing history was reviewed and no relevant manufacturing issues were identified.The most likely root cause was the using a power adaptor with a tap which is recommended against in the surgical technique.According to the surgical technique, "to prepare the hole for screw insertion, only manual tapping is recommended.Tapping with power has not been assessed for safety and accuracy.".
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