The customer¿s reported event of repeated air in line alarms were confirmed during a log analysis.However, false ail alarms were not replicated while testing both customer devices during the investigation.Log analysis results confirmed the presence of 1 ail alarm on pump module s/n (b)(4) and 10 ail alarms on pump module s/n (b)(4) on (b)(6) 2019.Ail test method results, consisting of a one hour test infusion and ail ultrasonic signal measurements confirmed that customer¿s.Pump modules ail assemblies are operating as intended.A review of the device history record in sap for sn (b)(4) was performed from the date of the manufacture to date of the release of product, which confirmed that this device was not involved in a production failure, and product was returned for servicing which correlates to the customer reported issue.A review of the complaint history record in the trackwise was performed for the sn (b)(4) which confirmed no similar complaints with the same or related failure mode.
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