(b)(4).Investigation summary the handpiece was received with the nose cone cracked.It was connected to a generator, evaluated with a test instrument and was found to be non-functional.The instrument was disassembled to inspect the internal components and the moisture indicator was positive.Due to the cracked nose cone, moisture entered the hand piece mid housing.Analysis was unable to determine the exact root cause that lead to crack in the hand piece nosecone.The manufacturing records were reviewed and the manufacturing/packaging criteria were met prior to the release of this batch.It is possible that the ingress of moisture affected handpiece functionality.
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