ML20099D967
| ML20099D967 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 10/25/1984 |
| From: | Parsons R CAROLINA POWER & LIGHT CO. |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| CON-NRC-283, REF-PT21-84, REF-PT21-85-053-000 188, PT21-85-053-000, PT21-85-53, NUDOCS 8411210041 | |
| Download: ML20099D967 (5) | |
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e C9&L 34 Ng'gv P.O. Box 101, New Hill, NC 27562 October 25,1984 N RC-283 Mr. James P. O'Reilly United States Nuclear Reguletory Commission Region II 101 Marietta Street, Northwest (Suite 2900)
Atlanta, Georgia 30323 CAROLINA POWER & LIGHT COMPANY SHEARON HARRE NUCLEAR POWER PLANT 1986 - 900, 000 KW - UNIT I AIR-OPERATED DIAPHRAGM VALVES-N ATURAL FREQUENCIES ITEM 188
Dear Mr. O'Reilly:
Attached is an interim report on the subject item, which was deemed rt. portable per tne 26, 1984. CP&L is pursuing provisions of 10CFR50.55(e) and 10CFR, Part 21 on September this matter, and it is currently projected that corrective action and submission of the final report will be accomplished by June 30,1985.
Thank you for your consideration in this matter.
Yours very truly, gbO-J R. M. Parsons Project General Manager Shearon Harris Nuclear Power Plant RMP/rt Attachment Messrs. G. Maxwell /R. Prevatte (NRC-SHNPP) ec:
Mr. R. C. DeYoung (NRC)
%%,J2I004I f
j.F[ICI AL COPY 2727 q.
a NRC-283 M". James P. O'Reilly bec: Mr. H. R. Banks Mr. C. S. Bohanan Mr. H. W. Bowles Mr. C. Carmichael (2)
Mr. G. S. Cashell Mr. N. J. Chiangi Mr. A. B. Cutter Dr. T. S. Elleman Ms. S. F. Flynn Mr. G. L. Forehand Mr. J. F. Garibaldi (Ebasco)
Mr. J. L. Harness Mr. P. C. Hopkins Dr. J. D. E. Jeffries Mr. I. A. Johnson Mr. S. A. Laur Mr. L. I. Loflin Mr. R. E. Lumsden Mr. R. L. Mayton, Jr.
Mr. M. A. McDuffie Mr. S. McManus Mr. C. H. Moseley, Jr. -
Mr. D. L. Nordstrom (LIS)
Mr. R. M. Parsons Mr. Sheldon D. Smith Mr. A. C. Tollison Mr. R. A. Watson Mr. F. Scapellato (Westinghouse)
Mr. J. L. Willis Mr. T. A. Baxter (Shaw, Pittman, Potts & Trowsbridge)
Mr. M. F. Thompson, Jr.
Mr. S. Hinnant Mr. J. F. Nevill File: HI/A-2D File: H.T-0544 Misc /00N/2
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CAROLINA POWER & LIGHT COMPANY SHEARON HARRIS NUCLEAR POWER PLANT UNIT 1 FIRST INTERIM REPORT ITT-GRINNEL. AIR-OPERATED DIAPHRAGM VALVES NATURAL FREQUENCIES i
ITEM 188 OCTOBER 23, 1984 REPORTABLE UNDER 10CFR50.55(e) AND LOCER21
SUBJECT:
10CFR50.55(e) and 10CFR21 Reportable Item Shearon Harris Nuclear Power Plant Unit 1 ITT-Grinnell Air-Operated Diaphraga Valves Natural Frequencies.
ITEM:
Air-Operated Diaphragm Valves for SHNPP Unit 1 SUPPLIED BY:
Westinghouse Water Reactor Division /ITT-Grinnell NATURE OF DEFICIENCY:
Westinghouse notified CP&L in September 1984 that a problem existed with a number of air-operated diaphragm valves supplied by ITT-Grinnell. The valves, designed to have natural frequencies greater than 33 hz, were found by test not to meet this requirement.
Further investigation revealed valves of the same type supplied directly by ITT-Crinnell to CP&L. These valves are supplied as ASME Class 2 and 3 components.
DATE PROBLEM WAS CONFIRMED TO EXIST:
Westinghouse Letter CQL-8174 dated September 4, 1984 and received September 11, 1984.
PROBLEM REPORTED:
N. J. Chiangi notified the NRC (Mr. A. Hardin) that this item was reportable under 10CFR50.55(e) and 10CFR21 on September 26, 1984.
SCOPE OF PROBLEM:
Twenty-seven (27) NSSS-supplied valves and nine (9)
BOP-supplied valves.
-SAFETY IMPLICATIONS:
Potential for increasing piping stresses and support loads in affected piping systems.
REASON PROBLEM IS REPORTABLE: Erroneous analysis / support of the valves (due to non-rigidity) could cause the design loads or stresses to be exceeded.
3 CORRECTIVE CP&L is investigating the problem with Ebasco,
- ACTION:
Westinghouse, and ITT-Grinnell. Reanalysis of the affected lines /restraiits is anticipated to begin shortly with a potential for additional restraints being added.
FINAL A final report is anticipated to be submitted by REPORT:
June 30, 1985.
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