On 7/29/2016 ,integra investigation completed.Method: failure analysis, device history evaluation.Results: failure analysis - one mirror returned in used condition, showing minimal wear, scratched reflective surface and detached from frames.While inspecting the mirrors it is also noticed that the mirror is detached and have fallen out of frame.Without knowing what temperatures were used when in autoclave and how the mirror was handled during wiping; the cause is undetermined.This type of damage can happen when heat penetrates the reflective surface during autoclaving.The complaint report is confirmed.Device history evaluation - dhr review: nonconforming product report / nonconforming material report history: there is no applicable nonconforming product report / nonconforming material report history.Variance authorization / deviation history: none.Engineering change order/manufacturing change order history: there is no applicable engineering change order/manufacturing change order history.Corrective action preventive action history: issued on 6/7/2011 for the mirror glass becoming separated from the mirror frame; issued 12/28/2015 for double side mirror glass separating form the frame.Health hazard evaluation history: issued on 7/10/2009 for the following reasons: mirror detaching from the frame.Conclusion: the root cause has been identified as a workmanship or material deficiency.Appropriate action has been implemented to rectify this manufacturing deficiency.
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