D9.Date returned to mfg: 29-jan-2024.Investigation summary: one used sample outside its original package was received at monterrey site for evaluation.Electrical testing performed.The returned sample was found accepted during electrical test.Vacuum testing performed.The returned sample was found rejected during testing.Air leak testing performed.The returned sample was found accepted during testing.Water leak test at 15 psi performed.The returned sample was found rejected during testing as the part exhibit leakage on pn: a950-02.Electrical board visual inspection performed.The returned sample was visually inspected by removing cover pn: 300-288 to verify the solder appearance.Solder application was observed to be correctly applied.Complaint is confirmed for the failure mode reported ¿the device had displayed no data during use¿ through the device analysis executed it was found that returned sample exhibited leakage defect on pn: a950-02.A capa was initiated to investigate root cause of electrical and leakage issues on transtar assembly a950-02.The device history record of reported lot 4299815 was reviewed and it was confirmed that no non-conformities were reported during production.The quality inspection forms were reviewed, and it was observed that no defects were found, and the lot was released.Dhr of lot 4307045 used subassy a950-02, which is related to condition reported was reviewed.As part of the process product is inspected 100% electrically and 100% for vacuum test.Results of these lots were reviewed and were found within specifications.
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