The tubing disconnect interrupted delivery supplemental oxygen to patient.Complaint history reviewed.There has been 1 similar complaint in the previous 24 months for product group 12 - tubing/connector under defect code "bond joint separation/disconnection".Without rm, lot #, or pictures of complaint, root cause cannot be verified.Most likely root cause is little/no bonding agent present on tubing where separated from connector.Application of bonding agent is a manual process and variation of amount applied to tubing is inherit to the process.Defects are mitigated through inspections based on statistical techniques.Risk(rma-20017c): r36: oxygen delivery interrupted - tubing components not bonded together securely - s=6 o=1 rpn=6.Rpn < 25, therefore risk is acceptable.
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