Section d4 - primary udi number: this section was corrected from (b)(4).The field service representative (fsr) inspected the instrument and discovered the source of the observed smoke and burned-plastic odor was due to a short circuit between the cables that connect the sm acdc controller board and the mech led, m 16 board.The boards and their cables were replaced to resolve the issue.An instrument service history for the architect c4000, serial #(b)(6) verifies no subsequent issues have been reported related to smoke and charred/burned parts after service intervention.A review of tracking and trending of the clinical chemistry systems did not identify any similar issues related to the architect c4000 system or the likely cause parts with regards to the current issue.The device history records were reviewed, and no non-conformances or deviations were identified.Labeling was reviewed and found to be adequate.The 2024 ul certification memo indicates that abbott diagnostic equipment and accessories are certified to the appropriate safety standards, and adequate protection is provided for the operator against spread of fire from the equipment.The smoke and charring/burning, observed was limited to the sm acdc controller board, mech led,m 16 board, led2 to acdc cable, led3 to sm acdc cable and led1 to smc cable, which occurred post maintenance of the uninterrupted power supply (ups) and a short circuit occurring; the smoke and charring/burning did not spread to other parts of the module.Based on the investigation, no systemic issue or deficiency of the architect c4000 processing module, serial number (b)(6) or the likely cause parts were identified.
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