The following information was received from NAMCO via facsimile:
On September 19, 2008, Namco determined that it had shipped product that did not meet the customer purchase order requirements. Namco supplied clear thread sealant instead of white thread sealant. The thread sealants are the same except that the white has an additional pigmentation additive. Namco began an evaluation and on September 29, 2008, determined that it did not have the capability to determine the impact to the supplied users. Therefore in accordance with 10CFR Part 21, Namco provided notification [to the NRC and the affected licensees]."
Namco has reviewed previous purchase orders of thread sealant and determined that the affected users are TVA-Watts Bar Nuclear Plant, Dominion Nuclear
Connecticut, Ameren-Callaway Plant and
Alabama Power-Farley Nuclear Plant.