This supplemental report is being submitted to report the device evaluation results and provide the device manufacture date the device was returned to olympus for evaluation.A visual inspection was performed on the returned device and found charring deposits inside the actuation block and the red dot on the release button was missing.The customer¿s working element was then checked with the following test equipment: model: mle-24-015 electrode, dac active cord and esg-400 generator.There was no sizzle sound, flash, or sparking was observed during activation.The working element was tested for leakage and failed from the lock body and tube assembly area.However, its mechanism parts are working properly.Based on the investigation results, the device failed the leak test; therefore, if moisture was inside the actuation block where the electrode proximal end locks in with the dac connector an intermittent connection would produce the sparking or arching once the output is activated.
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