According to the service report# (b)(4) dated on 2019-07-09 the field service technician (fst) replaced the hcu 40_valve kit (flow & 3-way) (material#70107.1778, serial#unknown).The fst performed the diagnosis and passed all the specifications.The device is back in clinical use.No root cause determination is applicable, the defective part is not available for investigation.The reported failure could be confirmed.The occurrence rate related to the reported issue is currently being monitored as part of maquet cardiopulmonary¿s trending program and additional investigations or corrections will be implemented in case of adverse trending.
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