1) Contain, do you have built product, do you have product in process. Can you help us narrow down our search for suspect parts. = What are other P/N concerned?
2) Tell us how you place the heat shrink, why is it where it is, could different operators place it differently dimensionally
3) Review your process, we need root cause of issue, Schneider to send HG Thai samples of bad cables
4) Need corrective/preventive action to prevent recurrence on this PN, and any other PN.