ML20072F811
| ML20072F811 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 03/16/1983 |
| From: | Parsons R CAROLINA POWER & LIGHT CO. |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| CON-NRC-47, REF-PT21-83 10CFR-050.55E, 10CFR-50.55E, NUDOCS 8303240431 | |
| Download: ML20072F811 (4) | |
Text
- '
Cp&L c.;._,....;,-
Carolina Power & Light Company
xcu c_=
0 P. O. Box 101, Neu Hill, N. C.
27562 9
March 16, 1983 G
"O
'p-y9
.o 9
.c.S
,.6 r'
Mr. James P. O'Reilly NRC-47 f)
United States Nuclear Regulatory Commission Region II
/
101 Marietta Street, Northwest (Suite 3100)
Atlanta, Georgic 30303 CAROLINA POWER & LIGHT COMPANY SHEARON HARRIS NUCLEAR POWER PLANT 1986 900,000 KW - UNITS 1 & 2 BASE METAL DEFECT IN A SPOOL PIECE SUPPLIED BY SOUTHWEST FABRICATING AND WELDING COMPANY, PURCHASE ORDER NY-435035 - ITDi 115
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 February 15, 1983.
CP&L is pursuing this matter, and it is currently projected that corrective action and submission of the final report will be accomplished by April 29, 1983.
Thank you for your consideration in this matter.
Yours very truly, g Aw_
R. M. Parsons Project General Manager Shearon Harris Nuclear Power Plant RMP/sh Attachment cc:
Mr. G. Maxwell (NRC-SHNPP)
Mr. V. Stello (NRC) 431 830316 L OFFICI AI. COPY 3 BOCK 05000gj b.
p
~ /Ex7
y t
CAROLINA POWER & LIGHT COMPANY SHEARON HARRIS NUCLEAR POWER PLANT UNIT NO. 1 INTERIM REPORT ITEM 115 i
BASE METAL DEFECT IN A SPOOL PIECE SUPPLIED BY SOUTHWEST FABRICATING & WELDING COMPANY MARCH 15, 1983 REPORTABLE UNDER 10CFR50.55(e)
{
REPORTABLE UNDER 10CFR21 4
i
SUBJECT:
Shearon Harris' Nuclear Power Plant / Unit No.1 10CFR50.55(e) and 10CFR Part 21, reportable deficiency in base metal defect, minimum wall thickness violation purchased under Purchase Order NY-435035.
ITEM:
Deficiency and Disposition Report "DDR No. 1272." Spool piece No. 1-CX-65-4 was found to have base metal defects. Area has been buffed to remove defect causing minimum wall violation.
SUPPLIED BY:
Southwest Fabrication Company, Houston, Texas.
NATURE OF DEFICIENCY:
Pipe was found to violate minimum wall thickness per ASME code requirements and site welding procedures.
PROBLEM OCCURREI:
Refer to section above.
L DATE PROBLEM REPORTED:
On January 26, 1983, N. J. Chiangi notified the NRC (A. Hardin) that this item was potentially reportable under 10CFR50.55(e) and 10CFR 21.
On February 15, 1983, N. J. Chiangi notified NRC (D. Verelli) that this item was reportable under 10CFR50.55(e) and 10CFR 21.
SCOPE OF PROBLEM:
The deficiency involves the safety related chilled water piping.
SAFETY EMPLICATIONS: Loss of safety related chilled water, could potentially jeopardize the environmental qualification operating temperature of certain safety components, and the environment envelop of the main control room.
e J
REASONS
' DEFICIENCY IS REPORTABLE:
Failure of the piping could result in reduction of cooling to safety train B AHU's.
No means of automatic' isolation in vicinity of deficiency, therefore, all "B" Train is sacrificed.
Break would result in loss'of all safety train B AHU's.
Incorporating additional single failure criterion - worst case is loss of safety train "A" chilled water. With loss of all safety related chilled water the environmental qualification of essential components could potentially be jeopardized due to exceeding of qualified operating temperature.
CORRECTIVE ACTION:
The vendor (Southwest Fabrication) has been notified of this condition via telephone and directed to take corrective action and to advise in writing what corrective action and preventive measures are being taken.
Spool piece as described will be replaced with an acceptable spool piece.
FINAL REPORT:
A final report will be issued once the spool piece has been replaced.
It is currently projected that the submittal date will be April 29, 1983.
i j