This event has been recorded in leventon (b)(4) as a customer complaint (reference (b)(4)), once the report mw5080251 was received from the distributor.According to this report, the defective unit was returned to manufacturer on 09/28/2018, but to date it has not been received in leventon (b)(4).Four (4) units from the same manufacturing lot were retrieved from retained samples and successfully passed flowrate testing.In addition, the batch records of the affected lot number were reviewed and no incidence similar to the one reported was detected in the controls done during the manufacturing process nor in the controls done before the product release.Therefore, it was not possible to determine the root cause of the defect reported.
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