Amersham issued a retrofit to the lock slide bumpers to correct the problem on the Model 660 Series exposure device. Industrial Nuclear issued a retrofit to the safety latch plate to correct the problem on the Model IR100 exposure device. Inspections are necessary to ensure that all exposure devices manufactured prior to the redesign have had the retrofits installed. In November 1997, NRC received a letter from Amersham describing a test failure of the Amersham Model 660 Series radiography exposure device while performing tests to meet the hypothetical accident conditions required in 10 CFR Part 71. To address this issue, the Certificate of Compliance for the Amersham Model 660 Series exposure device was amended to provide compensatory measures for licensees to follow during transport, and to restrict use of Amersham Model 660 Series exposure devices manufactured after November 17, 1997.
Inspections are necessary to verify licensee compliance.
The package must be properly blocked, braced, and supported to prevent shifting within the steel box or steel drum during transport. The steel box or drum must be blocked, braced, and secured against movement within the vehicle. For transportation by common carrier, the package must be properly secured within a steel box of welded construction or a steel drum. The package must be properly blocked, braced, and supported to prevent shifting within the steel box or steel drum during transport. The steel box or steel drum must be blocked, braced, and secured against movement within the vehicle.