The navio anspach drill intended for use in treatment was returned for evaluation.Nothing was identified visually that contributed to the reported problem.A functional evaluation was performed.The evaluation followed pv0005 rev.B.The reported problem was confirmed.The drill made a really high pitched sound and ran very hot.A review of manufacturing and service records indicate the device met all specifications upon release into distribution.A complaint history review for similar reported/confirmed complaints associated with the part with the failure modes ¿overheating of device¿ and ¿overheating¿ identified similar events.The most likely cause of the overheating is mechanical failure of the drill motor shaft.The drill is an oem part and cannot be further disassembled to determine a root cause.Based on the investigation, no further containment or corrective action is recommended or required at this time.Our reference number: (b)(4).
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