ML20093M015
| ML20093M015 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 10/04/1984 |
| From: | Parsons R CAROLINA POWER & LIGHT CO. |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| CON-NRC-279, REF-PT21-84-499-000 184, PT21-84-499, PT21-84-499-000, NUDOCS 8410190327 | |
| Download: ML20093M015 (4) | |
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Cp&L carolina ht company St\\ D
'P. 0. Box 101, New Hill, NC 27562 October 4, 1984'
-Mr.. James P. O'Reilly.
NRC-279 United States Nuclear Regulatory Commission Region II 101 Marietta Street, Northwest (Suite 2900)
. Atlanta, GA 30323 CAROLINA POWER & LIGHT COMPANY
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SHEARON HARRIS NUCLEAR POWER PLANT 1986 - 900,000 KW - UNIT 1
.6,000 LB. REDUCERS - INCORRECT MATERIAL, ITEM 184
Dear Mr. O'Reilly:
Attached is an interim. report on the subject item, which was deemed reportable per the provisions of 10CFR50.55(e) and 10CFR, Part.21 on September 5, 1984. CP&L is pursuing this matter, and it is currently projected that corrective action and submission of the final report will be accomplished by December 15, 1984.
Thank you for your consideration in this matter.
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Yours very truly, R. M. Parsons Project General Manager Shearon Harris Nuclear Power Plant RMP/ jam Attachment cc: Messrs. G. Maxwell /R. Prevatte (NRC-SHNPP) i Mr. R. C. DeYoung (NRC) i I
8410190327 841004 OFFICIAL COPY PDR ADOCK 05000 g r
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'SHEARON HARRIS NUCLEAR' POWER PLKIT UNIT 1 INTERIM REPORT' 6000 LB. REDUCERS -' INCORRECT MATERIAL 4
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REPORTABLE UNDER 10CFR50.55(e) AND 10CFR21 i
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SUBJECT:
Shearon Harris Nuclear Power Plant, Unit #1..
10CFR50.55(e) and-10CFR21 reportableLitem.. ANSI
- rating stamping and thickness' deficiencies in four.
ASME Class 1 flow restrictors.-
LITEM:
-Nonconformance Report 84-1588.
Four ASME Class 1, SA182 F-304 S.S. material, 2" x 3/4" socket weld type fittings purchased as ANSI.6000 lb.. rated construction and marked so on the outside of these fittings were found to be madesto ANSI 3000 lb. rated construction.
SUPPLIED BY:'
Southwest Fabricating &' Welding Company, Houston, Texas through their material supplier, WFI 4
International, Houston, Texas.
. NATURE OF DEFICIENCY:-
In July.1984, construction engineering personnel at Shearon Harris site reported a lack of proper socket wall thickness on the 2" side of the subject flow restrictors when compared to.the ANSI 6000 lb.
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fitting's dimension chart and matched =the thickness of a 3000 lb. 2" socket fitting's wall. The product had a "6M"' marking vibroetched on the outside surface of each fitting,' indicating a manufacturer's-6000 lb.
designation of the product. These fittings passed l:
all quality control' checks.
.,l i-DATE PROBLEM
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OCCURRED:
Refer to the above section.
DATE PROBLEM 4
j REPORTED:
On August 13, 1984, Mr. N. J. Chiangi notified the j
NRC (Mr. A. Hardin) of a potentially reportable item 4
per the' provisions of 10CFR50.55(e) and 10CFR, Part 21.-
The NRC was informed that four 6000 lb.
reducers supplied by Southwest Fabricating Company.
d were determined by the field to 'oe 3000 lb.
reducers.
On' September 10, 1984, Mr. K. V. Hate' notified the NRC (Mr. H. Krug) that the August 13,.1984 potentially reportable ~ item concerning the above
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items had been evaluated and found to be reportable per the provisions of-10CFR50.55(e) and 10CFR l
.Part 21.
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SCOPE OF PROBLEM:
The deficiency involves supply of a defective and incorrectly rated basic component necessary to assure the integrity of the reactor coolant pressure boundary.
' SAFETY IMPLICATION:
.These fittings are mounted in an RTD header, where three RTD scoop lines coming off the reactor coolant piping hot leg merge'together as a flow restrictor element, and its failure would constitute a small break LOCA.
REASON DEFICIENCY JS REPORTABLE: A small break LOCA would impede the safe shutdown of the plant.
_ CORRECTIVE ACTION:
The fittings were shipped back to Southwest Fabricating Company. New replacement fittings were made, inspected, and received at the SHNPP site in September 1984.
PREVENTIVE MEASURES:
Preventive measures will be by Southwest Fabricating Company and Ebasco, Inc. 's vendor quality assurance section. Last contact was made with them on September 19 and September 14, 1984, respectively.
An extension of time is requested to allow the vendor and Ebasco to investigate and complete preventive measures.
Estimated date for receipt of preventive measure from the above is November 30, 1984.
FINAL REPORT:
The final report will be issued after the background investigation and preventive measures have been received from Southwest Fabricating Company and Ebasco. Projected final report date is December 15, 1984.
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