(b)(4).If information is obtained that was not available for the initial medwatch, a follow-up medwatch will be filed as appropriate.Investigation summary: the device was received at the service center and evaluated.The device was received for maintenance and there were defects impairing the function of the device.The following repair activities were performed: "tornado": preventive replacement of o-rings performed.Motor does not turn: motor replaced.Motor corroded - motor replaced.Damaged parts of the drill mounting mechanism replaced.Defective o-rings replaced.Fluid ingress into the system is the possible root cause for the corroded motor and the motor not functioning as intended.We cannot determine a root cause for the damaged drill mounting mechanism.The unit was cleaned and the testing of the unit was completed per the service manual.The unit passed all functional tests and is fully operational.A manufacturing record evaluation was performed for the finished device [product code: 288022, serial number: (b)(4)] , and no non-conformances were identified.At this point in time, no corrective action is required, and no further action is warranted.Depuy mitek will continue to track any related complaints within this device family as a means of monitoring the extent with which this complaint is observed in the field.(b)(4).
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