The foreign material failure mode was confirmed on the returned unit.A fly wing was returned with the blister of the device.The wing was determined to be of a species endemic to subtropical areas.Physical examination of the returned product and additional testing by our team concluded that possible root causes could be attributed to: manufacturing/assembly error, severe shipping conditions, incorrect or inadequate packaging and user error in not properly inspecting unit prior to use.We concluded that the most likely root cause is manufacturing/assembly error due to event description and investigation findings.In sum, the product was returned and the failure mode was confirmed.
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