Evaluation was performed per spm31208000-1g and found that unit runs on its own/intermittent.Unit is wet and corroded inside.Housing is damaged.Motor and controller failed.Suspect root cause of the reported issue is mode switch failure, as a faulty mode switch can cause unanticipated activation of the handpiece.The manufacturing documents from the device history record have been reviewed with special attention to the manufacturing and inspection of the product.The product released for distribution was found to have met all specifications prior to shipment.The service history was reviewed, and the switch index button has previously been replaced twice on this device.(b)(4).Per the instructions for use, the user is advised the following: warnings: always place the handpiece in the "safe" position when not in use and prior to repositioning the rotating head on the oscillatory saw, rotating the collet on the reciprocating saw, or connecting or removing attachments and accessories.Precautions: handle all equipment carefully.If any equipment is dropped or damaged in any way, return it immediately for service.Prior to each use, perform the following: ensure all accessories are correctly and completely attached.Perform the required preoperative functional tests for the equipment and accessories.This issue will continue to be monitored through the complaint system to assure patient safety.
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