ML20084G343
| ML20084G343 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 04/09/1984 |
| From: | Parsons R CAROLINA POWER & LIGHT CO. |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| CON-NRC-208, REF-PT21-84 53, NUDOCS 8405070188 | |
| Download: ML20084G343 (10) | |
Text
.
g
/
o D
Cp&L Carolina Power & Light Company i? Pl2 : tl 5 m a& > -"='sa P. O. Box 101, New Hill, N. C. 27562 April 9,1984 Mr. James P. O'Reilly NRC-208 United States Nuclear Regulatory Commission Region II 101 Marietta Street, Northwest (Suite 2900)
Atlanta, Georgia 30303 CAROLINA POWER & LIGHT COMPANY SHEARON HARRIS NUCLEAR POWER PLANT 1986 - 900,000 KW - UNIT 1 WESTINGHOUSE EMD MANUFACTURED GATE VALVES, ITEM 53
Dear Mr. O'Reilly:
Attached is the final report on the subject item which was deemed reportable per the provisions of 10CFR50.55(e) and 10CFR, Part 21, on December 4,1980. With this report, Carolina Power & Light Company considers this matter closed.
If you have any questions regarding this matter, please do not hesitate to contact me.
Yours very truly, fyyyk;::+&
R. M. Parsons Project General Manager Shearon Harris Nuclear Power Plant RMP/sh Attachment ec:
Messrs. G. Maxwell /R. Prevatte (NRC-SHNPP)
Mr. R. C. DeYoung (NRC) l 8405070188 840409 PDR ADOCK 05000400 S
_PDR Ill rean
l CAROLINA POWER & LIGHT COMPANY SUFARON HARPIS NUCLEAP POWER PLANT UMT1 l
FINAL REPORT WESTINCHOUSE EMD MANUFACTURED CATE VALVFS l
ITEM 53 l
APRIL 9, 1984 1
i RFPOPTABLE UNDER 10CFR50.55(e) AND 10CFR21
a a
SUBJECT:
10CFR50.55(e) and 10CFR21 Reportable Item Shearon Harris Nuclear Power Plant Units 1 and 2 Westinghouse EMD Manufactured Cate Valves Item 53 ITFM:
See attachment SUPPLIED BY:
Westinghouse Electro-Mechanical Division NATURF OF 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.
J PROBLEM R EPORTFD:
On November 28, 1980, N. J. Chiangi informed the NRC (Mr. J. K. Rausch). that this item was potentially reportable under 10CFR50.55(e).
On December 4,1980,- N. J. Chiangi informed.the NRC (Mr. J. K. Rausch) that the problem was reportable under 10CFP21 and 10CFR50.55(e).
On December 29, 1980, N. J. Chiangi issued an interim report to the NRC (Mr. James P. O'Reilly).
On July 9,1981, CP&L's response to I. E.. Bulletin No. 81-02 was submitted to the NRC (M.. A. McDuffie to J. P. O'Reilly).
On November 13, 1982, CP&L's response to I. E. Bulletin No. 81-02 (supplement) was-submitted to ' the NRC :(M. A. McDuffie to J. P. O'Reilly).
l On December 22, 1981, N. J. Chiangi i ssued la second.
interim. report to the NRC (James P. 'O'Reilly).
On April 8, 1983,l R.
M.' Parsons iss'ue'd a third interim report to the NRC (James-P. O'Reilly).
On December 29, 1983, R. M. Parsons-issued a fourth interim report to the NRC. (James P. 0'Reilly). -
On March 1, 1984,'R. M. Parsons' issued:a fifth interim
-report to the NPC;(James P. O'Peilly).-
s Y
t
SCOPE OF I
PROBLEM:
The attached list of valves failed to completely open/close under their design differential pressure.
R EASON PROBLEM IS RFPORTABLE:
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 tab le.- -
CORRECTIVE ACTION:
The hardware and sof tware; changes have been completed. for each of the affected valves listed in the attached table.
In addition, SENPP design documents were issued for the restamping of all affected valve tags.
The required restamping has been completed.
1 a
f i
M.-
TABLE 1 MAXIMUM P (PSID)
AS FLOW APPROACHES P (PSID) BELOW (d)
ZERO WHICH VALVE POTENTIAL (e)
~ VALVE VALVE.
VALVE FUNCTION Equip.
Funct.
WILL CLOSE SAFETY ACTUAL DATE OF I.D.
LOCATION AND SYSTDI Spec.
Regmt.
(AS SHIPPFD)
CONSEQUENCES MODIFICATION MODIFICATION.
3CN78FN 8106 Chg. Pump Miniflow
.2750' 2750 700 2, - 4 A
9/82 del.
~
Iso. - CVCS 3CM78FN 8107 )
- Chg. Line Iso.
2750 2750 700 2, 4 A-9/82 del.
c CVCS 3GM78FN 8108 )
Chg. Line Iso.
2750 2750 700 2, 4.
A 9/82' del.'
c CVCS-3GM78FN-8801A Boron Inj. Tank 2750-2750 2450 2, 3 B
2/22/82
. Iso. - SIS (open (open) function).
3CM78FN t8801B.
Boron Inj. Tank'
'275'O 2750 700 2, 3 B
2/22/82 Iso.
. SIS-(open function) 3CM78FN' 8803A~
. Boron Inj. Tank 2750
'2750 2450 2, 3 B
2/22/82 Iso. - SIS (open function)-
- 3CM78FN 8803B'
. Boron Inj. Tank 2750 2750 2450 2, 3 B
2/22/82
-Iso. - SIS'
'(open function).
3CM78FN
'8884 HL Recire. Iso.
2750 0
700 13 D
- SIS 3GM78FN 9 8885 CL Recire. Iso.
2750 2750 2450-2,~3 B
2/22/82 SIS
.(open
' function) 3GM78FNi 8886:
HL Recirc. Iso.
'2750 0-700
.13 D
SIS L:
-. ~ -
I TABLE 1 f
MAXIMUM P (PSID)
AS FLOW APPROACHES' P (PSID) BELOW (d)
ZERO WHICH VALVE POTENTIAL (e)
- 1. VALVE
. VALVE'
. VALVE FUNCTION Equip.
Funct.
WILL CLOSE SAFETY ACTUAL DATE OF I.D.
LOCATION.
AND SYSTDI Spec.
Reqmt.
(AS SHIPPED)
CONSEOUENCES MODIFICATION MODIFICATION 3GM88FNH
.8000A*}-
PZR. PORV Block 2750 2500 700 1, 5 A
9/82 del.
RCS 3GM88FNH 8000B PZR. PORV Block 2750 2500 700 1, 5 A
9/82 del.-
RCS 3CM88FNH 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 70 Iso. - CVCS 4CM78FN.
~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 4CM78FN; 8133B Chg. Pump Disch.
2750 500 850 13 D
XO Iso. - CVCS 8CM72FB LCV115B: RWST to'Suetion 200 200 120 7
B 2/22/82 of CCPs - CVCS 8CM72FB
~I4V115D.~RWST.to Suction
'200 200-120 7
B 2/22/82 of CCPs
.CVCS :
'8CM72FB.
8130A-
-200 200' 120 6
B 2/22/82
r --
_ ~,
TABLE 1 MAXIMUM P (PSID)
AS FLOW APPROACHFS P (PSID) BELOW (d)
ZERO WHICH VALVE POTENTIAL (e)
VALVE VALVE VALVE FUNCTION Equip.
Funct.
WILL CLOSE SAFETY
~ ACTUAL DATF OF I.D.
LOCATION AND SYSTEM Spec.
Regmt.
(AS SHIPPED)
CONSFOUENCES MODIFICATION MODIFICATION 8GM72FB 8130A CCP Suction - CVCS 200 200 120 6
B 2/22/82 8CM72FB 8130B CCP Suction - CVCS 200 200 120 6
B 2/22/82 8CM72FB 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 EK 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 f 10CF74FE 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 10CM78FN 8888A RUR Pump CL Inj.
2750 200 1180 13 D
SIS 10CM78FN 8888B RHR Pump CL Inj.
2750 200 1180 13 D
SIS-10CM78FN 8889 RER HX Disch. to 2750 200 1180 13 D
HL - SIS 12GM88FNH 8808A Accumulator Disch.
2750 1750 2200 13 D
SIS (open function) 12CM88FNH 8808B Accumulator Disch.
2750 1750 2200 13 D
SIS (open function)
f l
TABLE 1 MAXIMUM P (PSID)
AS FLOW APPROACHES P (PSID) BELOW (d)
Z ERO WHICH VALVE POTENTIAL (e)
VALVE VALVE VALVE FUNCTION Equip.
Funct.
WILL CLOSE FAFETY ACTUAL DATE OF.
I.D.
LOCATION JUU) SYSTEM S pe c.
Reqmt.
(AS SHIPPED)
CONSEOUENCES
!!ODIFICATION MODIFICATION 12GM88FNH 8808C Accumulator Disch.
2750 1750 2200 13 D
SIS (open function)
.12GM88S EH -
8701A RHR Suction Iso.,
700 700 490 10 B
2/22/82.
Outer RHR
' 12GM88SEH 8701B RHR 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 12CM88SEH
.8702B RHR Suction Iso.,
700' 700 490 11 B
2/22/82 Inner - RHR 14GM74FE 8809A.RWST to RHR Pump 700 100 300 13 D
Suction - SIS
~14GM74FE 8809B RWST to RHR Pump 700 100 300 13 D
. Suction - SIS 14CM74FE 8811A Sump Suction - SIS.
700 100 300 13 D
14GM74FE -
8811B.
Sump Suction - SIS 700 100 300 13 D
14CM74FE
. 8812A' Sump Suction - SIS 700 700 300 12 B
2/22/82
.14CM74FE-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 Pilgrim' c) Unit 2 valve sent to Farley via Westinghouse
- d). See Enclosure 1.for key to potential safety consequences e) 'See Enclosure 2 for key to actual modifications
5 a
J KEY TO POTENTIAL SAFETY CONSFOUENCES 1
J I.D. No.
CONSEQUENCE E
1 (POPV Block Valves) Potential incomplete isolation of pressurizer PORV.
2 Potential cavitation of a centrifuFa1 charging pump or safety injection pump due to operation beyond maximum-runout flow.
3 Potential inability to perform post-accident containment isolation.
4 Potential degradation of safety injection flow below values in SAR.
Potential in' bility to isolate RCS pressure boundary.
5 a
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 j
suction of the CCPs; failure reduces redundancy of providing isolation of RWST during the recirculation..
phase following a LOCA.
Isolation will be provided by a 4
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 RFRS for normal operation.
s 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.
4 is provided by closing the inner valve.-
'11 Same. as No. 10 above except N
for. closing the outer valve.
12 Valve'is opened for recirculation following a LOCA.
Valve would.be closed for. containment isolation. Valve-l 18 encapsulated within a protective ~heusing which acts as the redundant containment isolation.
Failure of either valve: to close reduces redundancy.1 AlternateLyalve will i provide ~ isolation.4
13 J None yet identified 1 valve meets functional ~ requirement.
1 j.
KEY TO ACTUAL PODIFICATIONS I.D.
MODIFICATION A
Valves will be replaced - original valves utilized elsewhere.
B Cear change - modification performed on site with valve installed.
Adjust torque switch - mobihication performed on site C
with valve installed.
D No modification indicated - valve meets functional requirement.
4,-,
+ + +
- a
'f
- 1
-]
1
~
l s
l 4
t 1