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Investigation summary: investigation flow: power tools/calibration.Visual inspection: the 3.0nm torque limiting handle with 4.5 mm quick coupling (p/n: 03.632.204, lot #: 9852480-14) was returned and received at us cq.Upon visual inspection, there were scratches and slight discoloration on the returned device but have no impact on the functionality of the device.No other issues were identified with the returned device.Functional test: the functional test was performed on the returned device at service and repair the highest torque of the device measured during calibration testing was 3.72 nm which was not within the specified torque range of the device of 3 nm - 3.6 nm.Hence, the torque test failed high.Service & repair evaluation: the customer reported the device failed calibration.The repair technician reported the device failed high.Torque test high is the reason for repair.The item is not repairable per the inspection sheet.The cause of the issue is unknown.The item will be forwarded to customer quality.The evaluation was confirmed.Document/specification review: based on the date of manufacture drawings are reflecting the current and manufactured revision were reviewed.Complaint confirmed? yes, the device received failed in calibration testing.Hence, confirming the allegation.Investigation conclusion: the complaint condition is confirmed as the 3.0nm torque limiting handle with 4.5 mm quick coupling (p/n: 03.632.204, lot #: 9852480-14) failed high in calibration test.There is no indication that a design or manufacturing issue has caused the breakage and hence the root cause cannot be determined.Based on the investigation findings, it has been determined that no corrective and/or preventative action is proposed.Additional monitoring for any potential safety signals will be conducted through complaint trending and other post-market safety surveillance activities.Device history lot: part # 03.632.204.Synthes lot # 9852480-14.Supplier lot # 9852480-14.Release to warehouse date: aug 07, 2015.Supplier: (b)(4).No ncr's were generated during production.Device history review: review of the device history record(s) showed that there were no issues during the manufacture of this product, and any sub-components, which would contribute to this complaint condition.
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