Based upon the returned component, it was determined that the leak was due to a crack in the quadrox inlet port at the base of the luer lock (see attached photo).The most probable cause of this issue is an impact to the luer lock.This could have occurred if the component saw high impact forces during shipping, during assembly, or if the inlet port was subjected to a high force during use.Since all of the quadrox parts are leak tested 100% as part of the mfr process in germany, it is not believed to be an issue with the mfr of the component.Upon further review of the lot history record for this work order, there was no indication of any issues that would have caused this defect and there are no previous complaints for this type of defect, which is why this is considered an isolated incident and will be recorded and reviewed for any future trends.(b)(4).
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