ML17326A861

LER 81-006/03L-0:on 810317,ground Detected & Traced to Power Cable for Motor Operated Isolation valve,IMO-910,in Flowpath from RWST to Centrifugal Charging Pumps.Caused by Cable Damaged Near Termination at Motor Operator Junction Box

ML17326A861
Person / Time
Site:	Cook
Issue date:	04/09/1981
From:	Wizner D INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17326A858	List: ML17326A857 ML17326A859 ML17326A860 ML17326A861
References
LER-81-006-03L, LER-81-6-3L, NUDOCS 8104160395
Download: ML17326A861 (12)

Text

REGUL RY INFORMATION DISTRIBUT SYSTEM (RIDS)

ACCESSIOM NSR:8104160395 DOC,DATE: 81/ou/09 NOTARIZED: NO DOCKET FACIL:50 315 Donald CD Cook Nuclear Power Plant< Unit AFFILIATION ii Indiana 8 05000315 AUTH'AME AUTHOR WIZNERz D ~ G ~ Indiana 8 Michigan Electric Co, RECIP ~ NAME RECIPIENT AFFILIATION Region 3i Chicago< Of fice of, the Director

SUBJECT:

LER 81-006/03L-0:on 810317iground detected 8 traced to power~

cable for motor operated isolation val ver IMO 910qin flowpath fr om RWST to centri fugal char ging pumps. Caused by cable damaged near termination at motor operator Junction DISTRIBUTION CODE: A002S TITLE: Incident Reports RECEIVED:LTR g ENCL S box'OPIES ZE:g NOTES: ILE:3 copies all materials 05000315 RECIPIENT COPIES RECIPIENT COPIES 10 CODE/NAME I.TTR

' ENCL ID CODE/NAME LTTR ENCL ACTION: VARGA ~ S ~ 04 3 INTERNAL: A/D COMP8STRU06 1 1 A/D ENV TECH 07 1 1 A/D MATL 8 QU08 1 1 A/D OP REACT009 1 1 A/D PLANT SYS10 1 1 A/D RAD PROT 11 1 1=

A/D SFTY ASSE~12. 1 1 ACC EVAL BR 14 1 1 AEOD 3 3 AEOD/DMU 3 3 ASLBP/J ~ HARD 1 1 AUX SYS BR 15 1 1 CHEM ENG BR 16 1 CONT SYS BR 17 1 1 CORE PERF BR 18 1 1 DIR g ENGINEER I20 1 1 DIRg HUM FAC S21 1 1 DIR r SYS INTEG22 1 1 EFF TR SYS BR23 1 1 EQUIP QUAL BR25 1 1 GEOSCIENCES 26 1 ILC SYS BR 29 1' I8,E. 05 1 JORDANeE ~ /IE 1 1 LIC GUID BR 30 1 MATL ENG BR 32 1 MECH ENG BR 33 i NRC PDR 02'R 1

OP EX EVAL BR34 3 3 ASSESS BR 35 1 1 POWER SYS BR 36 1 1 RAD ASSESS BR39 1 1-REACT SYS BR 40 1 1 REG FILE 01 1 1 REL' RISK A 41 1 SFTY PROG EVA02 1 1 STHUCT ENG BRIl0 1 1 SYS INTERAC BPS 1 1 EXTERNAL: ACRS NSIC 05'6 46 1

16 1

LPDR 03 1 1 TOTAL NUMBER OF COPIES REQULRED:- LTTR ENCL

eileen

/E'lect@le INDIANA & MICHIGANELECTRIC COMPANY DONALD C. COOK NUCLEAR PLANT P.O. Box 458, Bridgman, Michigan 49106 (616) 465-5901 April 9, 1981 Mr. J.G. Keppler, Regional Director Office of Inspection and Enforcement United States Nuclear Regulatory Commission Region III 799 Roosevelt Road Glen Ellyn, IL 60137 Operating License DPR-58 Docket No. 50-315

Dear Mr. Keppler:

Pursuant to the requirements of the Appendix A Technical Specifications, the following report/s are submitted:

RO 79-042/03X-1 RO 81-004/03L-0 RO 81-006/03L-O.

Sincerely, D.V. Shaller Plant Manager

/bab cc: J.E. Dolan R.S. Hunter R.W. Jurgensen R'.F. Kroeger R.W. Kilburn E. Swanson/N. DuBry RO:III R.C. Callen MPSC G. Charnoff, Esq.

J.M. Hennigan W. Lavallee EPRI PNSRC J.F. Stietzel E.L. Townley Dir., IE (30 copies) .APg l 8. fgg Dir., MIPC (3 copies)

h 1 NRC FORM 366

{7 ~7,l UPDATE LER REVIOUS REPORT DATE 9-13-79 LICENSEE EVENT REPORT CONTROL BLOCK: Q1 (PLEASE PRINT OR TYPE AI.L REQUIRED INFORMATION) 4 I 6

~64 " I C E 1 14 QEU 15 U U U U U U LICENSE NUMBER U U U UQO 25 26 4 1 1 LICENSE TYPE 1 1QE~QE 30 57 CAT 58 7 8 9 LICENSEE CODE CON'T 8

soURGE LLJQB 60 61 0 5 0 0 0 DOCKET NUMBER 3 1 5 68 Q7 69 0 8 1 EVENT DATE 4 7 9 I4 Q 75 REPORT DATE 9 0 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES ~10 ON AUGUST 1 4 WHILE ISOLATING A PRESSURIZER LEVEL TRANSMITTER (NLP 1 52) THE AS S 0 C I ATE D P R E S S U R Z E R P R E S S U R E T R AN S M I TT E R ( N P P 1 5 2 ) WAS I I S 0 LATE D . '. WH E N NP P -1 52

~O3 WAS VALVED BACK IN, INDICATION DIFFERED FROM THE OTHER PRESSURIZER PRESSURE CHANNELS.

4 NPP- 1 52 OUTPUT WAS ADJUSTED FOR PROPER OUTPUT. ON AUGUST 22, IT I WAS D SCOV ERED THAT 6

THERE WAS A 30 PSI DIFFERENCE BETWEEN THE PRESSURIZER PRESSURE INDICATION AND A HEISE GUAGE (SEE SUPPLEMENT).

~OB 80 8 9 7

SYSTEM CAUSE CAUSE COMPONENT CODE COMP, SUBCODE VALV SUBCODE f

CODE CODE SUBCODE

~IA 9 10 Q11 A Qss ~CQ16 12 13 I N S T R U 18 O4 ~TQEE 19

~Z 20 Q1.

7 8 11 REVISION SEQUENTIAL OCCURRENCE REPORT Q11 LERIRP REPORT ACTION FUTURE EVENT YEAR Myg 21 22 EFFECT

~

23 SHUTDOWN

~4~

24 REPORT NO.

26 U~

27 M~~

28 ATTACHMENT CODE 29 NPRDP UTYPE 30 PRIME COMP.

31 U~

NO.

32 COMPONENT TAKEN ACTION ON PLANT METHOD HOURS +22 SUBMITTED FORM SUB. SUPPLIER MANUFACTURER

~E, ~FQEE ~ZQso ~ZQEE 0 gJQss ~QER ~QEE B Qss Q16 33 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS Q27 o THESE PRESSURIZER PRESSURE TRANSMITTERS WERE INSTALLED DURING THE 1979 REFUELING OUTAGE AS THEY ARE ENVIRONMENTALLY QUALIFIED FOR USE UNDER POST ACCIDENT CONDITIONS.

AT THE TIME OF THE 08-22-79 EVENT, IT WAS NOT KNOWN WHAT CAUSED ALL OF THESE TRANS-MITTERS TO DRIFT AS NO FURTHER PROBLEMS;.THAVE BEEN ENCOUNTERED WITH THESE TRANSMITTERS BARTON-MODEL NO. 763 . SINCE THAT TIME TH VENDOR SEE ATTACHED SUPPLEMENT 80 7 8 9 FACILITY OTHER STATUS Q METHOD OF DISCOVERY DISCOVERY DESCRIPTION Q32 7

6 8

STATUS

~QEE 9

E ~QER 10 1

% POWER 0 0 12 I '3 NA 44

~CQ31 45 TECHNICIAN OBSERVATION 46 80 ACTIVITY CONTENT RELEASED OF RELEASE AMOUNTOF ACTIVITY LOCATION OF RELEASE Q3 NA NA 6 ~Z Qss ~ZQ64 80 7 8 9 10 44 45 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION

~>>

7 8

~UU 9

U 11 Q>>LHQER 12 13 80 PERSONNEL INJURIES 12 80 7 8 9 11

'YZ'Q42 LOSS OF OR DAMAGE TO FACILITY Q43 NA 10 80 7 8 9 O

ISSUED P U 8 L I C I TY DESCRIPTION ~ NRC USF. ONLY PE a

68 69 80 ~ o 7 8 9 10 0

J. L. Rischling 6 1 6 465 5901 PHDNE

~

+ ~

r

ATTACHMENT TO LER¹79-042 03X-1 SUPPLEMENT TO EVENT DESCRIPTION INSTALLED FOR TEST PURPOSES. ALL PRESSURIZER PRESSURE TRANSMITTERS WERE RE-CALIBRATED ON AUGUST 22, AND FOUND TO BE READING FROM 2.5 TO 4 PERCENT LOW. THESE EVENTS WERE NON-CONSERVATIVE IN RESPECT TO T.S. TABLE 2.3-.1 ITEM 10 AND TABLE 3.3-1 ITEM 10.

SUPPLEMENT TO CAUSE DESCRIPTION HAS IDENTIFIED AN INHERENT PROBLEM WITH THE POWER SUPPLIES OF THIS MODEL TRANSMITTER WHICH CAN CAUSE ERRATIC TRANSMITTER OPERATION.

RFC-12-2512 HAS BEEN INITIATED TO INSTALL MODIFICATION KITS TO CORRECT THIS DESIGN PROBLEM.

THE EVENT IN WHICH A PRESSURI'ZER PRESSURE TRANSMITTER WAS IN-ADVERTANTLY ISOLATED WAS CAUSED AS A.TECHNICIAN CLOSED THE WRONG ISOLATION VALVE. TO PREVENT RECURRENCE, TECHNICIANS HAVE RECEIVED ADDITIONAL TRAINING ON VALVING OUT TRANSMITTERS.

'li NRC FORM 366 I7.7Z)

LtCENSEE EVENT REPORT CONTROL BLOCK:

,Q (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

P~Q I

[oO~] M I D C C 1 Q20 0 0 0 0 0 0'5 7 8 9 LICENSEE CODE 14 15 LICENSE NUMBER 26 LICENSE TYPE 30 57 CAT 58 CON'T

~O soURGE LLJQB 5 0 0 0 3 Q7 8 8 ] QB 0 4 0 9 8 1 QB 7 8 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES Q10 During a record review on 3/28/81, it was noted that the East Motor Driven Aux Feed Pump was removed from service on two occasions to enable repairs to the ESW su 1 4

valve, WMO-754. That constituted an inop. MDAFP per T.S.3.7.4.1 on 1/9/81 and 1/14/81.

On the first occasion, the system was tagged out to investi gate seat 1 eakage and on the second occasion the valve and the operator motor were re 1 aced ~ Publ ic heal th and safe-ty were not affected. This was the first occurrence of this type.

~08 7 8 9 80 SYSTEM CAUSE CAUSE COMP. VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE 7 8

~HH 9 10 Q>> ~Ep>>

11

~BQ>>

12 13 V A L V E X 18 Qto ~B 19

~0 20 Qlo SEQUENTIAL OCCURRENCE REPORT REVISION Qo LERIRO ooooo>

EVENT YEAR

~BI 21 22

'+

23

~00 24 REPORT NO.

4 26 QA 27

~03 28 CODE 29 TYPE

+L 30 31 Qo 32 NO.

ACTION FUTURE EFFECT SHUTDOWN ATTACHMENT NPRDP PRIME COMP. COMPONENT TAKEN,+CTION ONPlANT METHOD HOURS Q22 SUBMITTED FORM SUB. SUPPLIER MANUFACTURER

~Cp~Zpo 33 34

~Zpo 35

~ZQ>>

36 37 O O O O 40

~NQo 41

~Vpoo ~Apoo C I 0 Z Qo 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS 27 o The valve stem had siezed in the bod and w i replaced with a Pratt valve. While adjustin the valve stroke the motor on the i torque operator burned when the valve was driven into a sto . The motor was re laced 3 and the va 1 ve was tested sati s factori 1 y.

4 7 8 9 80 FACILITY STATUS  % POWER OTHER STATLIS Q

~3O METHOD OF DISCOVERY DISCOVERY DESCRIPTION Q32 7

o 8

[I 9

J Qoo ~~poo 10 12 13 NA 44

~BQ>>

45 SURVEILLANCE TEST 80 ACTIVITY CONTENT RELEASED OF RElEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE EK 7 8 9 Q3 ~ZQ34 10 11 NA 44 45 NA 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION Q39 7 8

~00 9

0 11 Qo~zpoo 12 13 NA 80 PERSONNEL INJURIES NUMBER DESCRIPTIONQ41 o ~00 0 Q4o NA 7 8 9 11 12 80 LOSS OF OR DAMAGE TO FACILITY TYPE DESCRIPTION Q43 9 ~ZQ42 NA 7 8 9 10 80 o

ISSUED MNQ44 PUBLICITY DESCRIPTION HA

~ NRC USE ONLY oo o

7 8 9 10 68 69 80 ~ o 0

NAME oF PREPARER Da id G. lz e PHONE: L 0

NRC FORM 366 U. S. NUCLEAR REGULATORY COMMISSION I7.7$ ) ~i ~ ~

LICENSEE EVENT REPORT

~

~

CONTROL BLOCK:

I ,Q (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

~01 7 8 9 M I D C LICENSEE CODE C 1 14 Q2 15 0 0 0 0 0 0 0 0 OQR 25 26 4 1 I LICENSE TYPE 1 IQE~QE 30 57 CAT 58 CON'T

~01 7 8 sOURGE LJQ 60 61 DOCKET NUMBER 5

68 Q 69 3 1 7 EVENT DATE 8 1 74 QB 75 REPORT DATE 80 QB EVENT DESCRIPTION AND PROBABLE CONSEQUENCES Q10 DURING NORMAL OPERATIONS A GROUND WAS DETECTED AND TRACED TO THE POWER CABLE FOR

~O3 MOTOR OPERATED ISOlATION VALVE IMO-910 IN THE FLOWPATH FROM THE RWST TO THE CENTRIFU-

~O4 GAL CHARGING PUMPS. THE REDUNDANT VALVE, IM0-911, WAS OPERABLE THUS MAINTAINING THE

~os FLOWPATH REQUIRED PER T.S. 3.1.2.2. ESF VENT FAN~ HV-AES-1A HAD TO BE REMOVED FROM

~OB SERVICE TO FACILITATE REPAIRS TO IMO-910. THAT CONSTITUTED AN INOP. VENT TRAIN PER

~07 T. S. 3.7.6.1. THE ACTION REQUIREMENTS WERE MET. PUBLIC HEALTH AND SAFETY WERE

~OB NOT AFFECTED. THIS WAS THE FIRST OCCURRENCE OF THIS TYPE.

7 8 80 SYSTEM CAUSE CAUSE COMP. VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE

~SH Q71 X Q12 ~A Q73 E L E C O N QE4 ~Z QER ~Z QER 7 8 9 10 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT REVISION Q17 LF RIRO REPoRT ACTION FUTURE EVENT YEAR

~81 21 22

+

23

~00 24 REPORT NO.

6.

26 Q~

27

~03 28 CODE 29 TYPE

+L 30 Q31 Qo 32 NO.

TAKEN ACTION EFFECT ON PLANT SHUTDOWN METHOD HOURS 'Q ATTACHMENT SUBMITI'ED NPRDA FORM SUB.

PRIME COMP.

SUPPLIER COMPONENT MANUFACTURER

~BQa~ZQER ~ZQEO ~ZQEE 0 0 0 Z N Q22 ~AQ24 ~AQEE A 3 8 5 p 33 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS 27 p THE CABLE WAS DAMAGED NEAR THE TERMINATION AT THE MOTOR OPERATOR JUNCTION BOX. THE DAMAGED PORTION OF THE CALBE WAS REMOVED AND THE CABLE WAS RETERMINATED. THE D WAS CAUSED BY A BROKEN FIBER BUSHING WHICH ALl OWED THE CONDUIT TO CUT INTO THE 1' CABLE. THE VALVE WAS TESTED AND RETURNED TO SERVICE. THE VENT FAN WAS ALSO RETURNED TO SERVICE ONCE WORK ON THE VALVE CABLE WAS COMPLETED.

7 8 9 80 FACILITY STATUS  % POWER

'AQEE OTHERSTATUS Q

~3p METHOD OF DISCOVERY DISCOVERY DESCRIPTION Q32 s E Q22 ~10 0 QER NA OPERATOR OBSERVATION 7 8 9 10 12 13 g4 45 46 80 ACTIVITY CONTENT RELEASED OF RELEASE AMOUNTOF ACTIVITYQ3 LOCATION OF RELEASE Q36 ZZ 7 8 9

~ Q33 LJQ34 10 11 NA 44 45 NA 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION 7 ~00 0 Q27 ~Z Qss NA 7 8 9 11 12 13 80, PERSONNEL INJURIE S o 0 o Q4O 7 8 9 11 12 80 LOSS OF OR DAMAGE TO FACILITY TYPE DESCRIPTION 43 9 Z Q42 7 8 9 10 80 o

ISSUED FANS PUBLICITY DESCRIPTION ~ NRC USE ONLY I O

2 8 9 10 68, 69 804 g NAMF-OF PREPARER

. " ZNER PHDNE.,616-465-,5901 0 0

13