ML18012A791
| ML18012A791 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 05/28/1997 |
| From: | Le N NRC (Affiliation Not Assigned) |
| To: | Robinson W CAROLINA POWER & LIGHT CO. |
| References | |
| NUDOCS 9705300218 | |
| Download: ML18012A791 (4) | |
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTONI D.C. 2055&4001 May 28, 1997 Hr.
W. R. Robinson, Vice President Shearon Harris Nuclear Power Plant Carolina Power 5 Light Company Post Office Box 165 - Hail Code:
Zone 1
New Hill, North Carolina 27562-0165
SUBJECT:
RESULT OF NRC INSPECTION OF SIEHENS POWER CORPORATION
Dear Hr. Robinson:
The NRC recently completed an inspection of Siemens Power Corporation-Nuclear Division (SPC) in Richland, Washington.
As a result of the'nspection, technical issues were raised that will require action by SPC to resolve.
The purposes of this letter are (1) to provide information to you regarding the open technical
- issues, and (2) to alert you to the need to compile and maintain specific information pursuant to regulatory requirements pertaining to the computer codes used to perform loss-of-coolant accident (LOCA) analyses for your plant.
The exit for the inspection was conducted with SPC at the NRC Headquarters on Hay 13, 1997.
Some of the open technical issues are discussed in the enclosed letter from the NRC to SPC, and concern testing and analysis performed by SPC to support the development of the EXEH PWR large-break LOCA evaluation model.
No immediate action is required by licensees using SPC's methodology.
- However, licensees will be responsible for the assessment and reporting of the impact of any changes to SPC's approved methodology that may result from the resolution of these issues.
In addition to the issues discussed in the enclosed letter from NRC to SPC regarding the inspection, the NRC inspection team found significant deficiencies in SPC's documentation of its analysis codes and models, and also determined that SPC performed inadequate verification and validation (V8V) of approved codes after changes were made to them.
Regulatory 'requirements for documentation and V8V of LOCA codes are contained in 10 CFR 50, Appendix K,Section II.
These requirements are imposed on licensees, since licensees are ultimately responsible for ensuring that the LOCA analyses'for their plants comply with applicable regulations.
In addition, general requirements with regard to quality assurance, which are related to licensee responsibilities in ensuring that LOCA codes and analyses comply with applicable regulations, are discussed in 10 CFR 50, Appendix B; for example, Criterion III (Design Control), Criterion V (Instructions, Procedures, and Drawings), Criterion VII (Control of Purchased
- Haterial, Equipment, and Services),
Criterion X
(Inspection), Criterion XVII (guality Assurance Records),
and Criterion XVIII (Audits).
Licensees must maintain documentation that provides adequate assurance that their LOCA analyses comply with the appropriate provisions of 10 CFR 50, Dp M Appendix B and Appendix K, and that they meet the acceptance criteria of 9705300218 970528 PDR ADQCK 05000400 8
PDR Nil!;Rm CHSR eRIHl
e 10 CFR 50.46.
This documentation should consist of (but is not limited to) reports of internal or external reviews of LOCA methodologies and results; audit or inspection reports; or independent confirmatory analyses.
While the staff at this time does not require that licensees submit this information, the staff will review the documentation as part of its inspections of licensees, such as those conducted in support of the core performance action plan.
Failure of licensees to provide adequate oversight of their contractors or to maintain adequate documentation could result in enforcement action.
The staff further reminds licensees that it is their responsibility to conduct meaningful audits of their contractors.
This is discussed in the context of requirements related to LOCA analyses in NRC Information Notice (IN) 97-15; however, it is generally applicable to other contractor activities, as well.
If the staff determines that contractor technical and quality assurance deficiencies should have been discovered by licensees'udits, the staff reserves the right to recommend that appropriate enforcement action be taken on licensees.
The staff will be considering if such actions are indicated as a result of issues discovered in the SPC inspection.
Sincerely, (Original Signed By)
Docket No. 50-400
Enclosure:
NRC Letter to Siemens Power Corporation dated May 7, 1997 cc w/enclosure:
See next page Distribution:
-Docket-Fi 1 e-PUBLIC PD II-1 Rdg S.
- Johnson, RII J.
Donohew (0-13-H3)
A. Levin (0-8-E23)
J.
Lyons (0-8-E23)
FILENAME G:
HARRIS HAR-SPC.LTR Ngoc B. Le, Project Manager Project Directorate II-1 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation DATE COPY Z< 97 Yes No OFFICE PM: PD II-1 NAME NLe LA:PDII-1 Dunn8 ton 52 97 Yes No AD:PDII-I/
GEdi son
/
/97 Yes/
o Yes No Yes/No
'I
Mr.
W.
R. Robinson Carolina Power
& Light Company Shearon Harris Nuclear Power Plant Unit 1
CC:
Mr. William D. Johnson Vice President and Senior Counsel Carolina Power
& Light Company Post Office Box 1551
- Raleigh, North Carolina 27602 Resident Inspector/Harris NPS c/o U.S. Nuclear Regulatory Commission 5421 Shearon Harris Road New Hill, North Carolina 27562-9998 Ms. Karen E.
Long Assistant Attorney General State of North Carolina Post Office Box 629
- Raleigh, North Carolina 27602 Public Service Commission State of South Carolina Post Office Drawer 11649
- Columbia, South Carolina 29211 Regional Administrator, Region II U.S. Nuclear Regulatory Commission Atlanta Federal Center 61 Forsyth Street, SW, Suite 23T85 Atlanta, Georgia 30303 Mr. Mel Fry, Acting Director Division of Radiation Protection N.C. Department of Environment, Health and Natural Resources 3825 Barrett Dr.
- Raleigh, North Carolina 27609-7721 Mr. T. D. Walt Director Operations
& Environmental Support Department Carolina Power
& Light Company'12 S. Wilmington Street
- Raleigh, North Carolina 27601 Mr. Bo Clark Plant General Manager Harris Plant Carolina Power
& Light Company Shearon Harris Nuclear Power Plant P.O.
Box 165 New Hill, North Carolina 27562-0165 Mr. J.
W. Donahue Director of Site Operations Carolina Power
& Light Company Shearon Harris Nuclear Power Plant Post Office Box 165, MC: Zone 1
New Hill, North Carolina 27562-0165 Mr. Robert P. Gruber Executive Director Public Staff NCUC Post Office Box 29520
- Raleigh, North Carolina 27626 Chairman of the North Carolina Utilities Commission Post Office Box 29510 Raleigh, North Carolina 27626-0510 Ms.
D. B. Alexander, Supervisor Licensing/Regulatory Programs Carolina Power
& Light Company Shearon Harris Nuclear Power Plant P. 0.
Box 165, Mail Zone 1
New Hill, North Carol ina 27562-0165 Mr. Stewart Adcock, Chairman Board of County Commissioners of Wake County P. 0.
Box 550
- Raleigh, North Carolina 27602 Margaret Bryant Pollard, Chairman Board of County Commissioners of Chatham County P. 0.
Box 87 Pittsboro, North Carolina 27312 Mr. Milton Shymlock U.S. Nuclear Regulatory Comm.
Atlanta Federal Center 61 Forsyth St.,