A field service engineer was dispatched to the customer site.The adapter converter, catalytic converter, oil mist filter, and vacuum pump oil were replaced to resolve the haze/mist issue.Unit meets specifications and was returned to service.(b)(4).
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H3: asp investigation summary: the investigation included a review of the device history record (dhr), trending analysis of the smoke/haze issue, functional analysis, and system risk analysis (sra).The dhr was reviewed and no issues relating the failure mode were noted.The involved unit met manufacturer specifications at the time of release.Trending analysis of the smoke/haze issue for the sterrad® 100nx unit was reviewed for the prior six months from open date and no significant trend was observed.The sra shows the risk for exposure to toxic or corrosive material to be "low." the oil mist filter was returned for evaluation and completed functional tests with no smoke/haze observed.The reason for the return of the oil mist filter could not be confirmed.The adapter converter and catalytic converter were not returned for further evaluation.The assignable cause of the smoke/haze is likely due to the adapter converter, catalytic converter, oil mist filter, and vacuum pump oil.The field service engineer replaced the parts and confirmed the sterrad® 100nx was restored to proper function after service.The issue was resolved at the customer facility.Asp will continue to track and trend this issue.Asp complaint ref #: (b)(4).
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