(b)(4).Batch t5ae25.Investigation summary: the analysis results found that the ats45 device was received with the firing mechanism damaged and with no reload present on the device.No functional test could be performed due to the condition of the device.The device was disassembled to verify the condition of the internal components and the firing trigger teeth were found broken.No conclusion could be reached on what caused the firing mechanism to fail, it is possible that the device was attempted to fire on thicker tissue than indicated or attempted to fire through a locked reload in previous firings causing an increase of the internal forces resulting in the component yielding.It should be noted that a 100% inspection takes place during manufacturing to ensure the device meets the require specifications; in addition, a sample of the batch is inspected at (b)(4).A manufacturing record evaluation was performed for the finished device batch number, and no non-conformances were identified.
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