The following information was received via fax:
Material supplied to MTCN [Mirion Technologies (Conax Nuclear)] by approved sub-suppliers audited to NCA-3800 by MTCN was considered to be ASME [American Society of Mechanical Engineers] qualified source material for Section II and Section III requirements. During triennial survey of MTCN by the ASME for renewal of our N Type Certificates of Authorization, it was identified by the ASME survey team that material supplied by two (2) MTCN approved sub-suppliers should be considered unqualified source material. At that time, MTCN's Quality Program did not include the use of unqualified source material.
Testing of the coupons for materials used with the basic components supplied to the operating plants is expected to be completed within the next 30 days.
The potentially defective components are electrical penetration headerplates, mounting weldment rings and weld neck flanges for mounting the electrical penetration assemblies.
The affected facilities are: Oconee, Ginna, Crystal River, Point Beach, Monticello, Cook, and Turkey Point.
Point of contact: John MacDonald 716-681-1973
- * * UPDATE FROM JOHN MACDONALD TO HOWIE CROUCH ON 9/23/13 AT 1747 EDT * * *
MTCN has determined the material supplied to U.S. plants does not impact the material safety or performance of the EPAs (Electrical Penetration Assemblies) delivered. Chemical and mechanical re-verification test results to date indicate there have been no test failures compared to the ASME SA-240 material requirements.
Notified R1DO (Welling), R2DO (Seymour), R3DO (Riemer), and NRR Part 21 Group (email only).
- * * UPDATE FROM JOHN MACDONALD TO HOWIE CROUCH (VIA EMAIL) ON 2/5/14 AT 1627 EDT * * *
MTCN has determined that chemical and mechanical tests indicate that the materials used in the EPAs delivered met ASME requirements and does not impact safety or performance of the delivered devices.
Due to the evaluation results, the vendor submitted this update to provide final closure of this Part 21 issue.
Notified R1DO (Lilliendahl), R2DO (Masters), R3DO (Orlikowski) and the Part 21 group (via email).