(b)(4).Upon completion of the investigation it was noted that the valve was visually inspected it was noted that the stator was dislodged.Therefore; the cam position/pressure could not be determined.The valve was hydrated for 24 hours.The valve was flushed, the valve passed the test no occlusion was noted.The valve was leak tested, no leaks were noted.The valve was reflux tested.The valve passed the test.The valve was dismantled and was examined under microscope at appropriate magnification: a scratch mark and a crack in the valve casing were noted.This is probably due to the valve receiving some form of impact.Corrosion was noted on the stator.The cam magnets were controlled.The magnets passed.Review of the history device records confirmed the valve product code 82-3113, with lot ckcdh4, conformed to the specifications when released to stock on the 24th march 2009.The root cause of the corrosion could not be clearly determined.The root cause for the dislodged stator could be partly due to the valve receiving some form of impact, as well as the corrosion.Based on the results of this investigation no further action is required.Trends will be monitored for this and similar complaints.At the present time this complaint is closed.
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