(b)(4).The customer returned one rusch polaris fo blade mac 3.Upon receipt, the blade was visually inspected.No obvious signs of damage were observed.It was noted that the returned blade was fiber optic meaning that no light bulb was present in the blade to cause flickering.This type of blade is to be used with a handle that contains a light bulb.The fiber optic bundle on the blade then redirects the light from the handle to the distal end of the blade.The returned blade was placed on a teleflex rusch dispoled handle to functionally test.The blade was connected to the handle without any resistance and was engaged.No flickering was observed when connected to the lab inventory handle.The light transfer through the fiber optic bundle was successful with no visual signs of light deficiency.A device history record review was performed and no relevant findings were identified.Based on the investigation performed, the reported complaint could not be confirmed.Functional testing did not reveal any operational anomalies.
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