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Root cause: the true root cause could not be determined due to inability to evaluate the affected sample as well as inability to reproduce the failure mode.Corrective action: a corrective action has not been taken due to the root cause determination.Investigation summary: an internal complaint (call number 50231) was received reporting a crack in a suction canister (part number v71-1107).The affected sample could not be returned due to contamination.A sample picture was provided and confirmed a crack at the bottom of the canister.As part of the investigation, a canister was intentionally cracked and shutoff testing performed using this canister.The unit pulled fluid and contained it.Two molds manufacture the reported item number.Due to no sample or reported lot number, it is unknown which mold manufactured the affected part.Therefore, samples from both molds were functionally tested.A shutoff test was performed followed by an extended vacuum test.All samples passed.Additionally, a visual inspection was performed on each sample for any abnormalities that could have contributed to the reported failure mode.No abnormalities were observed.There has been no change to the raw material or to the machine that manufactures this product.From 2019 to year-to-date 2020, there has been no internal occurrences of this part number failing an in-process test.In the past 2 years, 45,170 cases of this item number have been sold.During the same time period, one complaint was filed, yielding a complaint-to-sales ratio of 0.00221 percent.The investigation is complete at this time.If a new and critical information is received, this report will be updated.
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