Visual inspection: no physical damage observed throughout the handpiece or cable.Functional inspection: the handpiece in question was set up for testing using the following fixtures: tube set, pump, crossfire, and blade.Also, a joint fixture and water source were included in the testing.The handpiece was then activated several times with suction lever set to open.After several activations, the handpiece did not get hot to the touch.(b)(4).The probable root cause for the reported failure involving this device could be due to a failed motor.The product was returned for investigation and the reported failure mode was confirmed.The failure mode will be monitored for future reoccurrence.
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