Resolution of Generic Safety Issues: NMSS-0009. Amersham Radiography Source Cable Failures ( NUREG-0933, Main Report with Supplements 1–35 )

DESCRIPTION

This issue was identified¹⁷⁰⁹ by NMSS after three reports of radiography source disconnects involving drive cable breaks in Amersham equipment were reported. IN 97-91¹⁷¹² was issued to alert all industrial radiography licensees to potential failures of control (drive) cables used on Amersham Model 660 Posilock radiography systems.

CONCLUSION

The issue was given a high priority ranking and resolution was pursued.¹⁷⁰⁹ The findings, conclusions, and recommendations of a special inspection team were published in NUREG-1631.¹⁷¹⁹ Supplement 1 to Information Notice 97-91¹⁷¹² was issued to inform licensees of the report which was later presented at a meeting of the American Society of Non-Destructive Testing in October 1998. It was concluded that the failures were caused by a combination of wear, corrosion, and lack of lubrication. As of October 1998, all of the recommendations were implemented or were scheduled to be implemented. Thus the issue was resolved.¹⁷²⁰

REFERENCES

1709. Memorandum for J. Craig from F. Combs, "Submittal of New Generic Issues for Tracking in the Generic Issues Management and Control System (GIMCS)," June 4, 1998. [9806090180] 1712. Information Notice 97-91, "Recent Failures of Control Cables Used on Amersham Model 660 Posilock Radiography Systems," U.S. Nuclear Regulatory Commission, December 31, 1997 [ML031050007], (Supplement 1) August 10, 1998. [ML031050002] 1719. NUREG-1631, "Source Disconnects Resulting from Radiography Drive Cable Failures," U.S. Nuclear Regulatory Commission, June 1998. 1720. Memorandum for J. Craig from F. Combs, "Closure of NMSS Generic Issues," October 13, 1998. [9810160185]