Siemens has completed an investigation of the reported event.The root cause was determined to be a hardware error.The investigation showed that the problem was due to a temporary hardware error.The technician on site as well as the technical experts in the laboratory assume that the pcb pc1312 of the signal input box (sib) of the sensis system had a temporary fault, probably a loose contact at the connector.Unfortunately, this could not be traced on the part, especially since the affected pcb was replaced and thus the system was no longer in the fault state, which counteracts a retrospective investigation on the part.However, the thesis is supported by the statement of the technician on site that the led on the circuit board went out by touching the plug of the board, indicating that an interruption had taken place.After the service intervention and the replacement of the circuit board, the system was running faultlessly again.The occurrence rate of the mentioned error pattern and the spare parts consumption of the affected part were checked.A possible error concentration or even a systematic error, which would lead to a corrective action of the installed base, could not be determined by the investigation.After detailed investigation, the incident is not classified as a reportable event as neither serious injury, death nor an unexpected, prolonged hospitalization of the patient or any other person occurred or could be expected.
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