(b)(4).Additional information: the hp054 is stating that it has 40+ uses left; however, when we tried to test the hp054 the handpiece was received with the nose cone cracked and the mount was noted to be loose.No functional testing could be performed due to the nose cone was extremely cracked and no instrument could be attached to the handpiece.The instrument was disassembled to inspect internal components.The moisture indicator was positive.The transducer assembly was not held in place due to the cracked nose cone, so torquing on the disposable resulted in twisting only the handpiece transducer assembly until the internal wires got disconnected.It is possible that due to the wires were disconnected a replace handpiece was displayed.Due to the cracked nose cone, moisture entered the hand piece mid housing.A possible cause of the nose cone being cracked is the sterilization method due to the heating and cooling of the sterilization cycles is a stressor.It is possible that the ingress of moisture affected handpiece functionality.The batch history record was reviewed and no protocols or ncrs related to the complaint were found during the manufacturing process.
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