Plant investigation: the functional board was returned to the manufacturer for physical evaluation.During the visual inspection, physical damage was identified on the board.The returned part exhibited evidence of burn damage.The functional board was installed onto a test machine with a known good ic20.The test machine powered on and functioned as intended.However, the crit-line verification failed.Upon further investigation, a shorted component was identified.The shorted component was a damaged inductor l16 and damaged tracing.A review of the device manufacturing records was conducted by the manufacturer.There were no deviations or non-conformances during the manufacturing process.In addition, a device history record (dhr) review was performed and verified that the results of the in-progress and final quality control (qc) testing met all requirements.Upon completion of the evaluation, the reported issue was confirmed.
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