We received the returned light under customer complaint : (b)(4) and an investigation was initiated.The unit was visually inspected and the arm support fitting (p/n 1002036) was found to have failed.No other damage was observed.Having see a similar failure within the past six months, we performed multiple cut cross-section analysis to rule out porosity as a cause of failure.The material porosity looked normal and no stress-related factors were found.The product could not be capacity tested due to the failure location so it was rebuilt and tested with a p/n 1002036.We then tested the system to the failure analysis of the mi-1000 system dated 07/16/2015.The unit passed all tests.We could not determine the ultimate cause of the failure of the p/n 1002036.The load test was performed at 6x and the unit showed on degradation.Note: this report is late because it was sent to the test emdr instead of production.
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