ML20087D418

Fifth Interim Deficiency Rept,Item 53 Re Potential for Westinghouse Mfg Gate Valves Failing to Fully Close/Open Under Design Conditions.Also Reportable Per Part 21. Hardware Changes Completed.Final Rept Expected by 840415

ML20087D418
Person / Time
Site:	Harris
Issue date:	03/01/1984
From:	Parsons R CAROLINA POWER & LIGHT CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
CON-NRC-187, REF-PT21-84 53, NUDOCS 8403130398
Download: ML20087D418 (10)

Text

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Carolina Power & ight%dm*pa0y c:=.wrzun:w==.1::::. s P. O. Box 101, New Ilill, N. C. 27562 March 1,1984 Mr. James P. O'Reilly N RC-187 United States Nuclear Regulatory Commission Region 11 101 Marietta Street, Northwest (Suite 2900)

Atlanta, Georgia 30303 CAROLINA POWER & LIGIIT COMPANY SIIEARON HARRIS NUCLEAR POWER PLANT 1986 - 900,000 K W - UPIT 1 WESTINGilOUSE EMD MANUFACTURED GATE VALVES, ITEM 53

Dear Mr. O'Reilly:

Attached is our fifth 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. 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 15,1984.

If you have any questions regarding this matter, please do not hesitate to contact me.

Yours very truly, W

R. M. Parsons Project General Manager Shearon IIarris Nuclear Power Plant RMP/sh Attachment ec: Messrs. G. Maxwell /R. Prevatte (NRC-SIINPP)

Mr. R. C. DeYoung (NRC) 8403130398 840301 PDR ADOCK 05000 S ...

Oh'PICIAT#0T+1 .

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CAROLINA POWER & LIGHT COMPANY SHEARON HARRIS NUCLEAR POWER PLANT UNIT 1 FIFTH INTERIM REPORT WESTINGHOUSE EMD MANUFACTURED GATE VALVES ITEM 53 MARCH 1, 1984 REPORTABLE UNDER 10CFR50.55(e) AND 10CFR21 i

7

SUBJECT:

10CFR50.55(e) and 10CFR21 Reportable Item Shearon Harris Nuclear Power Plant Unit I and 2 Westinghouse EMD Manufactured Cate Valves Icem 53 ITEM: See attachment SUPPLIED BY: Westinghouse Electro-Mechanical Disision NATURE 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.

PROBLEM REPORTED: On November 28, 1980, N. J. Chiangi informed the NRC (14r. J. K. Rausch) that this item was potentially reportable under 10CFR50.5S(e).

On December 4, 1980, N. J. Chiangi informed the NRC (Mr. J. K. Rausch) that the problem was reportable under 10CFR21 and 10CFR50.55(e).

On December 29, 1980, N. J. Chiang1 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).

Or December 22, 1981, N. J. Chiangi-issued a second interim report to the NRC (James P.

O'Reilly).

l On April 8, 1983, R. M. Parsons issued 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.

l O'Reilly).

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SCOPE OF PROBLEM: The attached list of valves failed to completely open/close under their design differential pressure. (Note:- In our fourth interim report, we inadvertently-onitted the second sheet of'

! Table 1).

t REASON PROBLEM IS REPORTABLE: Failure of these valves to properly functio'n 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 hardware and software changes have been completed for each of the affected valves listed in the attached table. .In addition, SHNPP design documents have been issued for restamping of all affected valve tags. The required restamping has been completed.

We are currently in the process of verifying that all co-rective. action taken is adequate.

It is projected that a final report will be submitted by April 15, 1984.

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TABLE 1 .

MAXIPUM P (PSID) ,

AS ELOW APPROACHES P (PSID) BELOW (d)

ZEPO WHICH VALVE POTENTIAL (e)

VALVE VALVE Vr VE FUNCTION Equip. Funct. WILL CLOSE SAFETY ACTUAL DATE OF I.D. LOCATION AND SYSTDf Spec. Reqmt. (AS SHIPPED) CONSEOUENCES 10DIFICATION MOINIFICATTON 3CM78iN: 8106 Chg. Pump Miniflow 2750 2750 700 2, 4 A 9/82 del.

--Iso. - CVCS

.3GM78FN. '8107 k Chg. Line Iso. 2750 2750 700 2, 4 A- 9/82. del.

CVCS-

-3GM78FN 8108 } Chg. Line-Iso. 2750 2750 700 2, 4 A 9/82 del.

CVCS l3GM78EN 8891A Boron Inj. Tank .

2750- 2750 2450 2, 3 B 2/22/82

-Iso. - SIS (open (open) function)

L3CM78FN. 8801B Boron Inj . Tank '2750 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) ,

i

3GM78FN 8884- HL Recire. Iso. 2750 0- 700 13 D -

SIS.

~3CM78FN. 888'S 'CL:Recire. Iso. -2750 2750 2450 2,-3 B 2/22/82 -

SIS (open 1 . function) i3GM78FN -8886? .HL Recire. Iso. 2750 ~0 700. 13 D -

, SIS

TABLE 1 MAXIMUM P (PSID)

AS FLOW 'PROACHES P (PSID) BELOW (d)

Z1 f WHICH VALVE POTENTIAL (e)

VALVE VALVE VALVE FUNCTION Equip. Funct. WILL CLOSE SAFETY ACTUAL DATE OF I.D. LOCATION AND SYSTDI Spec. Regmt. (AS SFIPPED) CONSEOUENCES MODIFICATION MODIFICATION 3CMPSFNH 8000A*} PZR. PORV Block 2750 2500 700 1, 5 A 9/82 del.

FCS 3CM88FNH 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 4CM72FB LCV115C VCT Outlet 200 100 ---

6 C 2/22/82 CVCS 4CM72FB LCV115E VCT Outlet 200 100 ---

6 C 2/22/82 CVCS

~4CM78FN 8132A Chg. Pump Disch. 2750 500 850 13 D ---

XO Isc. - CVCS 4CM78FN 8132B Chg. Pump Disch. 2750 500 850 13 D XO Iso. - CVCS 4CM78FN 8133A Chg. Pump Disch. 2750 500 850 13 D -

XO Iso. - CVCS 4CM78FN 8133B Chg. Pump Disch. 2750 500 850 13 D ---

70. Iso. - CVCS 8CM72FB LCV115B RWST to Suction 200 200 120 7 B 2/22/82 of CCPs - CVCS 8GM72FB TLV115D RWST to Suction 200 200 120 7 B 2/22/82 of CCPs - CVCS 8CM72FB 8130A CCP Suct~on.- CVCS 200 200 120 6 E 2/22/82

TABLE 1 MAXIMUM P (PSID)

AS FLOW APPROACHES P (PSID) BELOW (d)

ZERO WHICH VALVF POTENTIAL (e)

VALVE VALVE VALVE FUNCTION Equip. Funct. WILL CLOSE SAFETY ACTUAL DATE OF I. D. AND SYSTDi Spec. Reamt. (AS SHIPPED) CONSEOUENCES PODIFICATION MODIFICATION I.OCATION_

8CM72FB 8130A CCP Suction - CVCS 200 200 120 6 B 2/22/82 8GM72FB 8130B CCP Suction - CVCS 200 200 120 6 B 2/22/82 BCM72FB 8131A CCP Suction - CVCS 200 200 120 6 B 2/22/82 8CM72FB 8131B CCP Suction - CVCS 200 200 120 6 B 2/22/82 8CM74FE 8706A RPR 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 10CM74FE ' 8887A RHR Disch. Cross 700 300 250 9 C 2/22/82 Connect - SIS 10CM74FE - 8887B RHR Disch. Cross 700 300 250 9 C 2/22/82 l

Connect - SIS l

f 10CM78FN 8888A RHR Pump CL Inj . 2750 200 1180 13 D ---

SIS L

8888B RHR Pump CL Inj. 2750 200 1180 13 D ---

l-10CM78FN

' SIS l

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!10GM78FN 8889 RPR HX Disch. to 2 > 200 1180 13 D I HL - SIS l 12GM88FNH 8808A Accumulator Disch. 2750 1750 2200 13 D ---

I SIS (open i function)

F

! 12CM88FNH 8808B Accumulator Disch. 2750 1750 2200 13 D ---

SIS (open function)

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TABLE 1 MAXIMUM P (PSID)

AS FLOW APPROACHES P (PSID) BELOW (d)

ZERO WHICH VALVE POTENTIAL (e)

VALVE [ . VALVE' . VALVE FUNCTION Equip. Funct. WILL CLOSF SAFETY ACTUAL DATE OF I.D. LOCATION- AND SYSTFM Spec. Reqmt. (AS SHIPPED) CONSFOUENCES MODIFICATION MODIFICATION

'12CM88FNH 8808C' LAccumulator Disch. 2750 1750 22i:0 13 D -

SIS (open function) 12GM88SEH' 8701A. RHR Suction Iso., 700 700 490 10 B 2/22/82 Outer - RRR 12CM88SEH- 8701B RHR . Suct. ion Iso. , 700 700 490 10 B 2/22/82 Outer - RHR

-I12CM88SEH 8702A RHR-Suction Iso., 700 700 490 11 B -2/22/82 Inner - RHR

'12GM88S EH'- 8702B -RHR Suction Iso., 700 700 490- 11 B 2/22/82 1 LInner.- RHR 14CM74FE. 8809A' RWST to'RHR Pump' 700 100 300 13 D --

Suction - SIS

-14CM74FE .. ~8809B- ~RWST to RHR Pump 700 100 300 13 D l

-Suction - SIS

'14CM74FE- 8811A Sump Svation - SIS 700- 100 '300 13 D 7 ,1 'Of74FE 8811B; Sump Suction - SIS - 700.- .100 300 13 D N ,

3.14Gh74FE 8812A'- '. Sump' Suction - SIS 700 700 300 12 B 2/22/82 ,

14CM74FF; 8812B. Sump Suct' ion - 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 Tect Program

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b) Unit 2 valve sent to Pilgrim c) LUnit-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 Iak %-. m - _ _ _ _ . - - , - - - . _ _ _ - - , . _ _ - - - - - -

Enclosure 1 KEY TO POTENTIAL SAFETY CONSEOUENCES I.D. No. CONSFOUENCE 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 runout flow.

3 Potential inability to perform post-accident containment isola tion.

4 Potential degradation of safety injection flow below values in SAR.

5 Potential inability to isolate RCS pressure boundary.

6 Two valves in series; f ailure 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 providing isolation of RWST during the recirculation 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 RERSl 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 byJclosing the 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.

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Enclosure 2 KEY TO ACTUAL MOPIFICATIONS I.D. MODIFICATION A Valves will be replaced - original valves utilized elsewhere.

B Cear 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.