IR 05000338/1980017
| ML19324A031 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 05/07/1980 |
| From: | Economos N, Herdt A NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML19324A022 | List: |
| References | |
| 50-338-80-17, 50-404-80-02, 50-404-80-2, 50-405-80-02, 50-405-80-2, IEB-79-17, IEB-80-08, IEB-80-8, NUDOCS 8006200114 | |
| Download: ML19324A031 (4) | |
Text
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NUCLEAR REGULATORY COMMISSION o $ E REGION 11 . O[ 0, 101 MARIETTA ST., N.W., SUITE 3100 % o ATLANTA, GEORGIA 30303
MAY - 81980 Report Nos. 50-338/80-17, 50-404/80-02 and 50-405/80-02 Licensee: Virginia Electric and Power Company Richmond, VA 23261 Facility Name: North Anna Power Station Docket Nos. 50-338, 50-404 and 50-405 License Nos. NPF-4, CPPR-114 and CPPR-115 Inspection at North A a site near Mineral, Virginia Inspector: ~ m_Mj 8 7 [8 !{ [ ~ [/7/[[0 /Date igned N. Econo Approved by: A. R. Herdt, Section Chief, RC&ES Branch bate Signed SUMMARY Inspection on April 9-10, 1980 Areas Inspected This routine, announced inspection involved 14 inspector-hours on-site in the areas of inspection activities relative to IE Bulletin 79-17, " Pipe Cracks in Stagnant Borated Water Systems at PWR Plants"; and IE Bulletin 80-08, "Exami-nation of Containment Liner Penetration Welds".
Results No items of noncompliance or deviations were identified.
8006200//f
. . DETAILS 1.
Persons Contacted Licensee Employees
- W. R. Cartwright, Station Manager
- H. L. Travis, Mechanical Foreman - NDT K. W. Outten, NDT Technician P. A. Slater, Resident QA Engineer (Construction)
J. E. Wroniewicz, QC Engineer (Construction)
Other licensee coployees contacted during this inspection included Other Organizations i Nuclear Energy Services, Inc. (CONAM) E. Anderson, Site Supervisor J. Robinson, Level II UT Examiner Stone and Webster Engineering Corporation (S&W) R. S. Jennings, Assistant Resident Engineer
- Attended exit interview.
2.
Exit Interview The inspection scope and findings were summarized on April 10, 1980 with those persons indicated in Paragraph 1 above.
3.
Licensee Action on Previous Inspection Findings Not inspected.
4.
Unresolved Items Unresolved items were not identified during this inspection.
5.
IE Bulletin No. 79-17, Pipe Cracks in Stagnant Borated Water Systems at PWR ' Plants This inspection effort was performed in order to review programmatic and work procedures relative to IE Bulletin 79-17 and to observe work activities in this area. The ultrasonic examinations were being performed by Nuclear Energy Services, Inc. (NES) under contract with VEPCO.
The ultrasonic examination procedure used for this program was developed and demonstrated to be capable of detecting intergranular stress corrosion cracking (ISCC) during an Electric Power Research Institute (EPRI) round ' . ,a v - --
- . _ _ ___ _ -- . - -2- . robin and at Nine Mile Point Unit 1.
The procedure had been written to comply with ASME Section XI, Appendix III (74W75) and had been approved by the NES 1.evel III UT examiner. The procedure under discussion was entitled, " Ultrasonic Examination Procedure for the Detection of Intergranular Stress Corrosion Cracking", No. 80A3592 R/2.
Weld selection was made from the following systems: safety injection (SI), quench spray (QS), chemical volume control (CH), recirculation spray (RS), residual heat (RH), and refueling purification (RP). Program coordination and support was provided by VEPCO's NDT group while VEPC0 QC performed receipt inspect;on and verified the vendor was included on VEPCO's approved vendor list.
Welds selected for observation by the inspector during volumetric examination were as follows: Weld No.
Size M System Condition W-3 6" x Sch. 40 Pipe to El RS NRI W-15 6" x Sch. 40 Pipe to El RS NRI W-4 6" x Sch. 40 Pipe to El RS NRI W-11 6" x Sch. 40 Pipe to El RS NRI W-2 8" to 6" reducer Pipe to El RS NRI NRI - No recordable indications These examinations were performed in accordance with procedural requirements by personnel who appeared to be adequately qualified to perform their assigned tasks. Equipment, material and personnel certifications were found to be in order. Records of completed examinations were reviewed for completeness and accuracy.
Visual Examination: Part 2(a) of IE Bulletin 79-17, Revision 1, requires that a visual examination be conducted on all normally accessible welds of the engineered safety systems.
This examination was to be performed on a monthly basis until the UT examination required by 2(b) had been completed. Article IWA-2000 of ASME Section XI and Article 9 of ASME Section V are referenced in the bulletin as being acceptable for this examination. The licensee's procedure used to perform the visual inspection was NDT-VT-15.1 R/2, "'.*Isual Examination of Nuclear Components".
The procedure was reviewed for technical content, comp 1hnec.d th u.ic ' requirements, and approved by a qualified NDE examiner. Visual examination of designated welds was performed from December through March 1980. The inspector reviewed records of completed visual inspections and personnel qualifications for completeness and accuracy.
No items of noncompliance or deviations were identified.
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Radiography of Containment Liner Flued Head Piping Penetration Welds for North Anna Units 3 and 4 The inspector met with VEPCO's cognizant QA engineer and S&W's representa-tive in order to discuss the subject matter and review the applicable specification and drawing (s).
In addition, the inspector took the oppor-tunity to advise the VEPCO representative that IE Bulletin No. 80-08, " Examination of Containment Liner Penetration Welds" had been issued which required them to address this area and report within a specified time. The controlling document for NA Units 3 and 4 is S&W's specification number NAS-3048, Revision 1, May 2,1977, " Shop Fabrication and Field Erection of Reactor Containment Steel Plate Liner". The penetration under discussion and the required nondestructive requirement appear on Chicago Bridge and Iron Company's drawing numbers 73-5224 and 345, Revision 3.
According to this drawing, flued head piping penetration welds for NA 3 and 4 require radiography and liquid penetrant examination. The aforementioned specifi-cation lists ASME Section III (71S72) as the applicable code and requires that "all welds betvaen penetration and flued fitting be fully examined in accordance with examination methods of NE-5200 of ASME III...". Fabrication records and radiographs were in storage at the vendor's plant; i therefore, a review of these items was not possible at the time.
' No items of noncompliance or deviations were identified.
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