ML20073P487
| ML20073P487 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 04/08/1983 |
| From: | Parsons R CAROLINA POWER & LIGHT CO. |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| CON-NRC-54, REF-PT21-83 10CFR-050.55E, 10CFR-50.55E, NUDOCS 8304250224 | |
| Download: ML20073P487 (9) | |
Text
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9 CD&L Carolina Power & Light Company P. O. Box 101, New Hill, N. C.
27562 April 8, 1983 c
w Mr. James P. O'Reilly
~ NRC-54 %
.,E United States Nuclear Regulatory-Commission
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Region II 101 Marietta Street, Northwest (Suite 3100)
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Atlanta, Georgia 30303 r.
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CAROLINA POWER & LIGHT COMPANY
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SHEARON HARRIS NUCLEAR POWER PLANT
.c-1986 900,000 KW - UNITS 1 & 2 W
WESTINGHOUSE EMD MANUFACTURED GATE VALVES, ITEM 53
Dear Mr. O'Reilly:
Attached is our third interim report on the subject item which was deemed reportable per the provisions of 10CFR50.55(e) and 10CFR, Part 21, on December 4, 1980. As stated in the attached report, it is currently projected that corrective action and submission of the final report will be accomplished by January 1, 1984.
Thank you for your consideration in this matter.
Yours very truly, M
n RT M.nParsons Project Gener'a,l Manager i
l Shearon Harris Nucidar Power Plant
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RMP/sh Attachment l
cc:
Mr. G. Maxwell (NRC-SHNPP)
Mr. V. Stello (NRC)
OFFICIAL COPY) eso42so224 sao40s PDR ADOCK 05000400 S
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-:S"e 1
l CAROLINA POWER & LIGHT COMPANY SHEARON HARRIS NUCLEAR POWER PLANT UNITS 1 &-2
- INTERIM REPORT April 8, 1983 ITEM 53 f
s WESTINGI:0USE EMD MANUFACTURED GATE VALVES Reportable Under 10CFR50.55(e) and 10CFR, Part 21 o
SUBJECT:
10CFR50.55(e) and 10CFR, Part 21 Reportable Item-SHNPP
- Westinghouse'EMD Manufactured Gate Valves ITEMS:
See' attachment
' SUPPLIED BY:
Westinghouse Electro-Mechanical Division NATURE OFi
" DEFICIENCY:
Potential for valves not to fully close/open under design conditions.
DATE PROBLEM
'WAS CONFIRMED TO EXIST:
. Westinghouse Letter CQL-6135-dated November 19, 1980, received November 26, 1980.
PROBLEH
' REPORTED:
, November 28, 1980 - N.'2J. Chiangi informed the NRC.'(Mr. J. K. Rausch) that'this item was potentially reportable under 10CFR50.55(e).
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December 4,1980 - N.' J. Chiangi informed the NRC (Mr. J. K. Rausch) that' the problem was reportable under 10CFR21.and 10CFr(50.55(e).
December 29, 1980 - N. J. Chiangi issued an interim report
~to James P. O'Reilly.
-July 9, 1981 - CP&L's response to I. E. Bulletin No. 81-02 (M.-A.'McDuffie to J. P. O'Reilly).
-November 13,'1982 - CP&L's response to I. E. Bulletin No. 81-02. supplement (M. A. McDuffie to J. P. O'Reilly).
December 22, 1981~--N. J. Chiangi issued a second interim report to James'P. O'Reilly.
SCOPE OF PROBLEM:
The attached list of valves failed to completely close/open under their design differential pressure.
L REASON PROBLEM IS REPORTABLE: Failure of these valves to properly function could create or lead to a significant safety deficiency.
The potential safety significance of each' valve is listed in the attached table.
CORRECTIVE ACTION:
The proposed corrective action plan in the second interim report, December 22, 1981, has been revised. The revised corrective action plan by Westinghouse also reduces the scope of valves affected from those reported earlier.
The revised corrective action plan is attached and all hardware changes have been completed.
The rest of the corrective actions (valve restamping, drawing rev., etc.)
will be completed by January 1, 1984.
TABLE 1:
MAXIMUM lip (PSID)
AS FLOW APPROACHES AP (PSID) BELOW (d)
ZERO WHICH VALVE POTENTIAL (e)
VALVE VALVE-VALVE FUNCTION Equip.
Funct.
WILL CLOSE.
SAFETY ACTUAL DATE OF I.D.
LOCATION AND SYSTEM Spec.
Reqmt.
(AS SHIPPED)
CONSEQUENCES MODIFICATION. MODIFICATION
.3GM78FN 8106 Chg. Pump Miniflow 2750 2750 700 2, 4 A
9/82 del'.
Iso. - CVCS 3GM78FN 8107 )
Chg. Line Iso.
2750 2750 700 2, 4 A
9/82 del.
c CVCS 3GM78FN 8108c)
Chg. Line Iso.
2750 2750 700 2, 4 A
9/82 del.
CVCS 3GM78FN 8801A Boron Inj. Tank 2750 2750 2450 2, 3 B
2/22/82 Iso. - SIS (open (open) function) 3GM78FN 8801B Boron Inj. Tank 2750 2750 700 2, 3 B
2/22/82 Iso. - SIS (open function) 3GM78FN 8803A Boron Inj. Tank 2750 2750 2450 2, 3 B
2/22/82 Iso. - SIS (open (open) function) 3GM78FN 8803B Boron Inj. Tank 2750 2750 2450 2, 3 B
2/22/82 Iso. - SIS (open (open) function) 3GM78FN 8884 HL Recirc. Iso.
2750 0
700 13 D
SIS 3Q478FN 8885 CL Recirc. Iso.
2750 2750 2450 2, 3 B
2/22/82 SIS (open (open) function) 3GM78FN 8886 HL Recire. Iso.
2750 0
700 13 D
SIS 1
4
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TABLE 1 MAXIMUM A P _ (PSID)
AS FLOW APPROACHES 4P (PSID) BELOW (d)
ZERO WHICH VALVE POTENTIAL.
(e)
VALVE VALVE VALVE FUNCTION Equip.
Funct.
WILLLCLOSE SAFETY ACTUAL DATE OF.-
I.D.
LOCATION AND SYSTEM Spec.
Reqmt.
(AS SHIPPED)
CONSEQUENCES MODIFICATION MODIFICATION 3GM88FNH 8000A ) PZR. PORV Block 2750 2500 700 1, 5 A
9/82: del.
a RCS 3CM88FNH 8000B )
PZR. PORV Block 2750 2500 700 1, 5 A'
9/82' del.
b RCS 3GH88FNH 8000C PZR. PORV Block 2750 2500 700 1, 5 A-9/82 del.
RCS 4GM72FB LCV115C VCT Outlet 200 100 6
C
'2/22/82 CVCS 4GM72FB LCV115E VCT Outlet 200 100 6
C 2/22/82 CVCS 4GM78FN 8132A Chg. Pump Disch.
'2750 500 850 13 D
XO Iso. - CVCS 4GM78FN 8132B Chg. Pump Disch.
2750 500 850 13 D
XO Iso. - CVCS 4GM78FN 8133A Chg. Pump Disch, 2750 500 850 13 D
XO Iso. - CVCS f
4GM78FN 8133B Chg. Pump Disch.
2750 500 850 13 D
XO Iso. - CVCS i
8GM72FB LCV115B RWST to Suction 200 200 120 7
B.
2/22/82 of CCPs - CVCS 8CM72FB LCV115D RWST to Suction 200 200 120 7
B 2/22/82 of CCPs - CVCS 8GM72FB 8130A CCP Suction-CVCS 200
'200 120 6
B 2/22/82
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TABLE 1 MAXIMUM-ap_(PSID)_
~
AS FLQW APPROACHES AP (PSLDL BELOW (d)_
ZERO WHICH VALVE POTENTIAL-(e)
VALVE VALVE VALVE FUNCTION Equip.
Funct.
WILL CLOSE SAFETY ACTUAL DATE OF I.D.
LOCATION AND SYSTEM Spec.
Reqmt.
(AS SHIPPED)
CONSEQUENCES MODIFICATION MODIFICATION 8GM72FB 8130B CCP Suction-CVCS 200 200 120 6
B 2/22/82 8GM72FB 8131A CCP Suction-CVCS 200 200 120 6
-B 2/22/82 8GM72FB 8131B CCP Suction-CVCS 200 200 120 6
B 2/22/82 8GM74FE 8706A RHR HX Disch. to 700 300 250 8
C 2/22/82 CCP Suction - RHR 8GM74FE 8706B RHR HX Disch. to 700 300 250 8
C 2/22/82 CCP Suction - RHR J0GM74FE 8887A RHR Disch, Cross 700 300 250 9
-C 2/22/82 Connect - SIS 10GM74FE 8887B RHR Disch. Cross
.700 300 250 9
C 2/22/82 Connect - SIS 10GM78FN 8888A RHR Pump CL Inj.
2750 200 1180 13 D
SIS 10GM78FN
-8888B RHR Pump CL Inj.
2750 200 1180 13 D
SIS 10GM78FN 8889 RHR HX Disch. to 2750 200 1180 13 D
HL - SIS 12GM88FNH 8808A Accumulator Disch.
2750 1750 2200 13 D-SIS (open (open) function)'
12GM88FNH 8808B Accumulator Disch.
2750 1750 2200 13 D
SIS (open (open) function)
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TABLE 1
- MAXIMUM. A P (PSID).
'AS FLOW APPROACHES AP (PSID) BELOW' (d)
ZERO WHICH VALVE POTENTIAL.
(e).
VALVE-VALVE' VALVE FUNCTION.
Equip.
Funct.
WILL CLOSE
. SAFETY FACTUAL DATE OF I.D.
LOCATION AND SYSTEM' Spec.~
Reqmt.
(AS SHIPPED)
CONSEQUENCES MODIFICATION MODIFICATION 12GM88FNH 8808C Accumulator Disch.
2750 1750 2200 13 D~
SIS (open.
(open).
function) 12GM88SEH 8701A RHR Suction Iso.,
700 "700' 490 10 s
2/22/82 Outer - RHR 12GM88SEH 8701B RRR Suction Iso.,
700 700 490 10 B
2/22/82 Outer - RHR 12GM88SEH 8702A RHR Suction Iso.,
700 700.
490 11 B
2/22/82 Inner - RHR 12GM88SEH 8702B RHR Suction Iso.,
700 700 490 11 B
2/22/82 Inner - RHR 14GM74FE 8809A RWST to RRR Pump 700 100 300 13
.D Suction - SIS 14GM74FE 8809B RWST to RHR Pump 700 100 300
'13 D
Suction - SIS 14GM74FE 8811A
-Sump Suction - SIS 700 100
-300 13 D
14GM74FE 8811B Sump Suction - SIS 700 100 300 13 D
14GM74FE 8812A Sump Suction - SIS 700
.700 300 12 B
2/22/82 14GM74FE 8812B Sump Suction - SIS 700 700 300 12
.B 2/22/82 NOTES: Each valve contracted for both.Shearon Harris units, a) Unit 2 valve sent to-Marshall Test Loop for EPRI Test Program
.b) -Unit 2 valve sent to Pilgram c). Unit 2 valve sent to Farley via Westinghouse d) See Enclosure 1 for key to potential safety conse,quences e) See Enclosure 2 for key to actual modifications, t
g Enclorura 1
' KEY TO POTENTIAL' SAFETY CONSEQUENCES I.D. NO.-
CONSEQUENCE 1-(PORV Block Valves) Potential incomplete isolation of
' pressurizer PORV.
2~
Potential cavitation of a' centrifugal charging pump or safety injection pump due to operation beyond maximum
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runout flow.
-3
- Potential inability to perform post-accident containment isolation.-
~4' Potential degradation of safety. injection flow below values:in SAR.
~l 5-Potential inability to isolate RCS pressure boundary, l
6 Two valves in series; failure of either valve to close reduces redundancy of providing isolation. Alternate valve will provide isolation.
7 One MOV in each of two parallel paths from the RWST to suction'of the CCPs; failure reduces redundancy of l
providing isolation of RWST during the recirculation.
j phase following a LOCA.
Isolation will be provided by a
. check valve in series with the two paths.
8 Valve is opened for recirculation phase following a LOCA.
Failure of valve to close precludes realignment of RHRS for normal operation.
9 Failure of valve to close reduces redundancy of providing low lead train' separation during CL recirculation' phase
[
following a~LOCA.
Train. separation can be: achieved by closing other valve.
'10~
Two valves in series; failure of outer isolation valve to.
close reduces redundancy of providing isolation.
Isolation is provided by-closingLthe' inner valve.
11 Same as No. 10 above except for closing the outer valve.
12 Valve is opened-for recirculation'following a LOCA.
~ Valve-would be closed for containment isolation. Valve
,is' encapsulated within a protective housing which acts as the redundant containment isolation. Failure of either valve to close reduces redundancy. Alternate valve will
- provide isolation.
13 None yet identified - valve meets functional requirement.
4 i
N
r Enclorura 2 KEY TO ACTUAL MODIFICATIONS I.D.
MODIFICATION A=
Valves will be replaced-original valves utilized elsewhere.
B.
. Gear change -modification performed on site with valve installed.
C Adjust torque switch - modification performed on site with valve installed.
D No modification indicated - valve meets functional requirement.
1-e t-i t
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