ML20063K728
| ML20063K728 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 08/31/1982 |
| From: | Dixon O SOUTH CAROLINA ELECTRIC & GAS CO. |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| REF-PT21-82 NUDOCS 8209080454 | |
| Download: ML20063K728 (4) | |
Text
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SOUTH CAROLINA ELECTRIC & GAS COMPANY post oppice tee COLUMe A. south CAnoWNA 29218 O. W. DixoN. JR.
vie, en..... =t August 31, 1982 Nuctsin OpenatioNS Mr. James P. O'Reilly, Director U. S. Nuclear Regulatory Comnission Region II, Suite 3100 101 Marietta Street, N.W.
Atlanta, GA 30303
Subject:
Virgil C. SumTer Nuclear Station Docket No. 50/395 Operating License No. NPF-12 Reportable Substantial Safety Hazard Incmplete ID4 issued by Gilbert Associates, Inc.
REF: Ietter from E.H. Crews to J. P. O'Reilly dated 10/24/79
Dear Mr. O'Reilly:
On August 18, 1982, Mr. Virgil Brownlee of the NRC Region II waW)otified of a substantial safety hazard as described in 10CER21 involving the ' issuance of an incmplete ECN by Gilbert ComTonwealth. Se details of this substantial.
safety hazard are found in the attached report.
m a
m is substantial safety hazard is being reported under cur 10CFR50.55e k procedure and is considered to be the final report.
c:
Very truly yours, N
c.,
v O. W. Dixon, Jr.
JG:0WD:tdh Attachment cc: see page two UFFICIAL COM 8209000454 820031 PDR ADOCK 05000395 S
PDR q --
a L.
il
p-Mr. J. P. O'Reilly Page two August 31, 1982 cc:
V. C. Sumner w/o attach T. C. Nichols, Jr.
iw/o attach G. H. Fischer.
w/o attach
-O. W.<Dixon, Jr.
~
H. N. Cyrus H. T. Babb D. A. Nauman M. B. Whitaker, Jr.
W. A. Williams, Jr.
O. S..Bradham R. B. Clary M. N. Browne A. R. Koo.i H. Radin Site Q. A.
C. L. Ligan (NSRC)
G. J. Braddick J. L. Skolds J. B. Knotts, Jr.
B. A. Bursey I&E (Washington)
Document Management Branch
- (55e,21, LER only)
NPCF File l
l i
1
.2
9 10CFR21 - SUBSTANTIAL SAFETY HAZARD 1.
Name and Address of Reporting Individual John M. Gesn SCEsG - 328 Main Street Colunbia, SC 2.
Identification of Basic Canoonent Issuance of an inamplete Engineering Change Notice 3.
Identification of Firm Supplying Caponent Gilbert Conmonwealth 4.
Nature of Defect, Substantial Safety Hazard Created, and Evaluation In the letter frm E.H. Crews to J.P.
O'Reilly of 10/29/79, SCE&G reported the potential failure of ASCO NP-1 solenoid valves and stated as the corrective action that the elastmers in class lE ASCO NP-1 solenoid valves would be replaced with viton. Gilbert Conmonwealth issued an ECN to accmplish this change.
During a review of the ECN by SCE&G it was discovered that the solenoid valves that operate XVA 9311 A&B and XVA 9312 A&B were not included on this BCN. These valves are the containment isolation valves for the line leading to and frm RM-A2, the containment building atnespheric monitor. In the occurrence of a design basis event these containment isolation valves could possibly stay open due to the potential failure of the solenoid valves to allow the venting of air off the diaphram of the air operated valves. A 3/4 inch tube in the system piping is open to the atzinosphere and this would allow a direct leak path frczn the containment building to the environment.
}
m-
l, '
b 5.
Date Information of Defect Was Obtained i
August 4, 1982 6.
Number and Iocation of Defect l
Pbur valves were affected. h se solenoid valves operate XVA 9311 A&B r
and XVA 9312 A&B l
t t
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7.
Corrective Action L
The generic corrective action should i
be addressed to Gilbert Carmonwealth.
l SCEEG will replace the r
elastamers in the solenoid valves l
l that operate XVA 9311 A&B and XVA 9312 A&B with viton.
i l
l 8.
Advice to Purchasers or Licensees None 1
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