Investigation x-review dhr x-inspect returned samples.Analysis and findings complaint #(b)(4).Distribution history: this complaint unit was manufactured at csi on 9/23/2019 under wo #'s (b)(4) and shipped on 11/1/2019.Manufacturing record review: dhr's (b)(4) were reviewed and no non-conformities, related to the complaint condition, were noted.Incoming inspection review: not applicable.Service history record: no additional service history records found for this unit.Historical complaint review: a review of the 2-year complaint history showed similar reported complaint conditions.Product receipt: the complaint unit was returned on a repair.However, based on log 95029, this unit was at csi on 10/6/2020.Visual evaluation: visual examination of the complaint unit revealed no physical damage.Functional evaluation: complaint unit was functionally evaluated and found not to function properly.Root cause : initially, a loose component (coil on t5) was found in contact with mod1 and repaired which appeared to have corrected the rf failure in cut mode.However, upon functional testing rf leakage was present in the blend mode.No definitive root cause for this issue could be reliably determined at this time.The loose component is viewed to have been jarred loose due to insufficient epoxy.Correction and/or corrective action : the unit was fitted with a new board, tested to specifications and returned to the customer.The failed board was set aside for additional evaluation by csi ee's.No further corrective action is necessary at this time.No further training required at this time.*preventative action activity coopersurgical will continue to monitor this complaint condition for trends.
|