(b)(4).Upon completion of the investigation it was noted that the valve was visually inspected it was noted that the stator is dislodged.Therefore; the cam position/programming and pressure test could not be determined.The valve was hydrated.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 failed the test.The valve was dried.The valve was dismantled and was examined under microscope at appropriate magnification: a crack was noted in the valve casing.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 82-3112, with lot chkb9y, conformed to the specifications when released to stock on the 20th september 2007.The root cause of the corrosion could not be clearly determined.The root causes for the dislodged stator could be partly due to the valve receiving some form of impact as well as 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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