H.6.Investigation summary: a device history review was conducted for lot number 634962.A review of our records determined that this is the third instance of leakage occurring in this production batch.According to the sampling plan applied for product performance, this lot was accepted and released without defects being noted during the final assembly or visual inspections of packaged goods.Unfortunately a sample could not be obtained for evaluation and testing.Without the ability to investigate the affected unit our quality engineers were unable to determine the root cause for this complaint.Specifically for this record photos or samples were not received, which is necessary to perform a better investigation, therefore, bd nogales can¿t conclude the failure reported by the customer.However, for leakage issue in leakage/air in injection valve that have been detected in others customer complaints, the team previously confirmed issues with this product lot 8037509 where leakage occurred at the valve port assy.Due to a bad tubing assembly.Engineering team assessed the assembly process finding a worn pin in station 5 that could cause the reported failure mode.This pin is in charge of assembling the gray tubing into the valve housing.Process fmea (b)(4) and process eura (b)(4) were reviewed and there are proper controls in place to detect product malfunctions.For leakage issue (in injection valve, batch 8037509) based on investigation results to date, root cause was associated to a bad tubing assembly by station 5 of equipment vh59.Nogales will open a capa (#629955) not because of the cid as it is ¿no capa required¿ as per (b)(4) based on the severity and occurrence calculation, the reason to open the capa is to better support the exposure to external stakeholders, the focus of the capa will be batch 8037509 and sub-assembly lots related to that batch.
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