Involved component: axel xenon light source 180w (op930 51708259).General information: we received a complaint about a malfunction of a light cable.The cable op913 has been sent to schölly for investigation decontaminated.Light source op930 was not provided.Consequences for the patient: according to the available information, there were no negative consequences for the patient.Failure description: the cable has been sent to schölly for investigation directly.Investigation: according to the investigation report (attached to pc notification (b)(4)) residues can be found on the ends of the cable most likely caused by repeated insufficient cleaning of the cable.Due to this residues, a heat accumulation at the connection end of the cable occurred.Batch history review: the device quality and manufacturing history records have been checked for all available lot numbers and found to be according to our specifications valid at the time of production.Conclusion and root cause: based on the information available as well as a result of our investigation the root cause of the failure is most probably related to an insufficient usage.Rationale: based on the investigation of schölly, the increase of temperature was caused due to residues at the end of the cable.According to the ifu, do not use aldehydes or alcohols for pre-cleaning to avoid residues/proteins becoming fixated.Corrective action: according to sop sa-de13-m-4-2-04-000-0 (corrective action and preventive action), a capa is not necessary.
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