ML17317B153

LER 79-012/03L-0 on 790330:hydraulic Control Values Did Not Return to Normal Position Placing Hydraulic Lock on Operator Cylinder.Caused by Dirt in Hydraulic Pilot Valve.Hydraulic Fluid Replaced

ML17317B153
Person / Time
Site:	Cook
Issue date:	04/27/1979
From:	Michael Brown INDIANA MICHIGAN POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17317B152	List: ML17317B151 ML17317B153
References
LER-79-012-03L-01, LER-79-12-3L-1, NUDOCS 7905040002
Download: ML17317B153 (6)

Text

NRC FORM 366 U. S. NUCLEAR REGULATORY COMMISSION I7-77)

LICENSEE EVENT REPORT 7

CON'T 8 9 CONTROL BLOCK:

M I D LICENSEE CODE C

I C 'Q

14 15

'Q"'Q~00 6

Q1 LICENSE NUMBER (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 26 LICENSE TYPE 30 57 CAT 58

~O 7 8

~LQ6 60 61 0 5 0 0 0 DOCKET NUMBER 3 1 6 Q7 68 69 0 3 3 EVENT DATE 0 7 9 Os 74 75 0 4 2 7 7 REPORT DATE 80 Q

EVENT DESCRIPTION AND PROBABLE CONSEQUENCES +10 FOLLOWING OPENING OF II4 STEAM GKIERATOR STOP VALVEp MRV-240'HE HYDRAULIC CONTROL VALVES DID NOT RETURN TO THEIR NORMAL POSITION, PLACING A HYDRAULIC LOCK ON THE OPERATOR CYLINDER. THIS CONSTITUTED AN INOPERABLE

~O4 STEAM STOP VALVE DELINEATED IN TECH. SPEC. 3.7. 1.5. THE VALVE WAS

~OS .

INOPERABLE FOR APPROXIMATELY ONE INCUR;'O PREVIOUS EVENTS. PUBLIC,,)

~O6

~O7 HEALTH AND SAFETY WAS NO JEOPARDIZED BECAUSE- OF THIS EVENT.

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

~CD QI, ~EQIE ~BQ13 V A L V 0 P Q4 ~CQE ~Z QIQ

[OO~) 18 19 20 7 8 9 10 11 12 13 SEQUENTIAL OCCURRENCE REPORT REVISION Qlv LER(RP R ERR ACTION FUTURE IIE EVENT YEAR

~79 21 22 EFFECT

~

23 SHUTDOWN

~0]

24 REPORT NO.

26 27 28 ATlACHMENT CODE 29 NPRDP TYPE 30 PRIME COMP.

31 NO.

COMPONENT TAKEN ACTION ON PLANT METHOD HOURS +22 SUBMITTED FORM SUB. SUPPLIER MANUFACTURER QIR ~QIQ ~QEQ ~QEI 0 0 9 > ~NQ33 ~A@4 ~AQEE 2 9 8 PEE 33 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS Q27 0 THE HYDRAULIC PILOT VALVE WAS FOUND TO BE STUCK IN A POSITION THAT CAUSED THE BYPASS VALVE TO HYDRAULICALLYLOCK THE MAIN VALVE OPERATING CYLINDER.

THE CAUSE OF THE PILOT VALVE STICKING ISTHOUGHTi TO HAVE BEEN DIRT. THE HYDRAULIC FLUID HAS BEEN REPINED. NO FUTURE ACTIONS ARE PLANNED.

4 80 7 8 9 FACILITY ~gp METHOD OF STATUS  % POWER OTHER STATUS QP DISCOVERY DISCOVERY DESCRIPTION Q32 I 9 E QER ~10 10 0

12 Q39 13 NA 44

~AQEI 45 46 OPERATOR OBSERVATION 80 8 9 ACTIVITY RELEASED OF RELEASE CONTENT AMOUNT OF ACTIVITYQS LOCATION OF RELEASE Q EZ7 8 LzJS 9

Izl8 10 NA 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION Q39 7

8

~00 0 11 Q37 12 Z Q39 13 NA 80 7 9 P ERS0NNE NUMBER L INJURIES DESCRIPTION 41 7 47 g5 Z7 t ODOQ

[ii>) ~oo 7 8 9 o QQ 11 12 NA 80 LOSS OF OR DAMAGE TO FACILITY 43 TYPE DESCRIPTION 9 Z Q43 NA 8 9 10 80 7

P U 8 L I C I TY NRC USF ONLY ISSUED DESCRIPTION Q KZ 7 8 WNQ44 9 10 NA 68 69 80 ~ ~

M. S. BROWN PHONE:

(616) 465 5901'XTR 398 NAME OF PREPARER

~ ~

(7-77)

LICENSEE EV ENT REPORT CONTROL BLOCK: QI (PLEASE PRINT OR T'I c ALL REQUIRED INFORMATION) 1 6

~oi 8 9 M I D LICENSEE CODE C C 2 Q2 14 LICENSE NUMBER 25 Qs 26 4 I I I I LICENSE TYPE'0 04~Os 57 CAf 58 CON'T

~ol " 0 5 0 0 0 3 1 6 0 3 3 0 7 9 77 AE ~LQB Q7 QB Q g 2 7 8 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES +10 FOLLOWING OPENING OF II ) STEAM GENERATOR STOP VALVE> MRV-240'HE HYDRAULIC CONTROL VALVES, DID NOT RETURN TO THEIR NOR)%L POSITIONS PLACING. A HYDRAULIC LOCK ON THE OPERATOR CYLINDER. THIS CONSTITUTED AN .INOPERABLE

~OS STEAM STOP VALVE DELINEATED IN TECH. SPEC. 3.7.1.5. THE VALVE WAS

~OS INOPERABLE FOR APPROXIMATELY ONE l&UR. NO PREVIOUS EVENTS. PUBLIC s

~O7 HEALTH AND SAFETY WAS NO JEOPARDIZED BECAUSE OF THIS EVFNT.

~08 7 8 80 SYSTEM CAUSE CAUSE COMP. VALVE CODE "

'0 CODE SUBCODE COMPONENT CODE SVBCODE SUBCODE

~OS ~Co 01) PJOls ~0>s V A L V 0 P O>s ~00>s ~Z Os 7 8 9 11 12 13 18 19 20 I SEQUENTIAL OCCUR A ENCE REPORT REVISION 0l7 LEAJAO REPORT ACTION FUTURE EVENT YEAR

~79 21 22 EFFECT

~

23 SHUTDOWN

~p 24 REPORT NO.

26 27 ATfACHMENT 28 CODE 29 NPADR TYPE 30 PRIME COMP.

31 NO.

32 COMPONENT TAKEN ACTION ON PLANT METHOD HOUAS 22 SUBMITTED FORhI SUB. SUPPLIER hIANUFACTUREA

~QB~Qs 33 34

~Qss 35

~Os' 36 37 40 PJQss 41

~Os'Oss 42 43 44 Z 9 0 47 Qs CAUSE DESCRIPTION AND CORRECTIVE ACTIONS 27 0 THE HYDRAULIC PILOT VALVE WAS FOUND TO BE STUCK IN A POSITION THAT CAUSED THE BYPASS VALVE TO HYDRAULICALLY LOCK THE MAIN VALVE OPERATING CYLINDER.

THE CAUSE OF THF PILOT VALVE STICKING ISTHOUGHT TO HAVE BEEN DIRT. THE HYDRAULIC FLUID HAS BEEN REPLACED. NO FUTURE ACTIONS ARE PLANNED.

4 7 8 9 80 FACILITY STATUS .~ POVIEA OTHER STATUS ~

~go METHOD OF DISCOVERY DISCOVERY DESCRIPTION 32 CZ 7 8 9 E Qss ~10 10 0 0>s 12 13 NA 44

~AQsi 45 46 OPERATOR OBSERVATION 80 ACTIVITY CONTENT RELEASED OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE z Oss z Os NA 7 8 9 11 45 80 PERSONNEL EXPOSURES NUI'ABER TYPE DESCRIPTION QSS v ~00 0 0Ã Z Qss 13 NA 7 8 9 11 12 80 PERSONNEL INJURIES 7 8 9 11 12 80 LOSS OF OA DAMAGE TO FACILITY TYPE DESCRIPTION s ~ZQs2 NA 7 8 9 10 80 PUBLICITY NRC USF. ONLY ISSUED DESCRIPTION s ~NOss NA 8 9- 10 68 69 BO o NAME OF PREPARER M. S. BROWN (616) 465-5901, EXT. 398

I) f t1

(7.77)

LICENSEE EVENT REPORT 44 V CSNTROL BLOCK:

1

.Q 1 (PLEASE PRINT OR T E ALL REQUIRED INFORMATION)

[os 7 '

9 M I D LICENSEE CODE C C 14 Qs 15 0 0 0 0 0 0 LICENSE NUMBER 0 0 0 Qs 26 4 1 1 LICENSE TYPE 1 1 30 ps~ps 57 CAT 58 CON'T

~s 7 '8 REI'OBT

~LQS 60 61 0 5 Q Q Q DOCKET NUMBER 3

68 0 69 3 0 EVENT DATE 7 9 74 QS 75 0 ZI 2 REPORT DATE 7 7 0 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES +10

. ~O FOLLOWING OPENING OF 84 STEAM GENERATOR STOP VALVE MRV-240 THE HYDRAULIC

~Os CONTROL VALVES DID NOT RETURN TO THEIR NORI%L POSITIONS PLACING A

~O4 HYDRAULIC LOCK ON THE OPERATOR CYLINDER. THIS CONSTITUTED AN INOPERABLE-STEAM STOP VALVE DELINEATED IN TECH. SPEC. 3.7. 1.5. THE VALVE WAS INOPERABLE FOR APPROXIMATELY ONE HOUR. NO PREVIOUS EVENTS. PUBLIC

~O7 HEALTH AND SAFETY WAS NO JEOPARDIZED BECAUSE OF THIS EVFNT.

~os 80 8 9 SYSTEM CAUSE CAUSE 'COMP. VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE

~OS 7 8

~CP 9 10 QQE 11

~QE 12 13 V A L V 0 P 18 Qln ~CQE 19

~Z 20 Qls 1 SEQUENTIAL OCCURRENCE REPORT REVISION LERIRO EVENT YEAR REPORT No. CODE TYPE No.

Q11 REPORT ~79 21 22 23 24 26 27 28 29 30 31 32 ACTION FUTURE EFFECT SHUTDO)YN ATI'ACHMENT NPBDR PRIME COMP. COMPONENT TAKEN ACTION ON PLANT METHOD -

HOURS +22 SUBMITTED FORM SUB. SUPPLIER MANUFACTURER

~zpsl o o 9 N -

~Bpls ~zpns ~zpss ~NQEE ~YQE4 ~AQEE Z 5 0 Qsfl 33 34 35 36 37 40 4I 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS 27 o THE HYDRAULIC PILOT VALVE WAS FOUND TO BE STUCK IN A POSITION THAT CAUSED

~11 THE BYPASS VALVE TO HYDRAULICALLYLOCK THE t%IN VALVE OPERATING CYLINDER.

THE CAUSE OF THE PILOT VALVE STICKING ISTHOUGHT TO HAVE BEEN DIRT. THE 3

HYDRAULIC FLUID HAS BEEN REPLACED. NO FUTURE ACTIONS ARE PLANNED.

7 8 9 80 FACILITY STATUS BQR ~iO

% POY/EB O Qs OTHER STATUS NA

~ METHOD OF DISCOVERY

~AQ31 DISCOVERY DESCRIPTION OPERATOR OBSERVAT ION 7 8 9 10 12 13 44 45 46 80 ACTIVITY CONTENT s

RELEASED OF RELEASE z Qas zpsn AMOUNT OF ACTIVITYQ35 NA LOCATION OF RELEASE Q 7 8 9 10 11 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION 1

8

~00 OJQET Z 12 Qss 13 NA 7 9 11 80 PERSONNEL INJURIES 7 8 9 11 12 80 LOSS OF OR DAMAGE TO FACIUTY TYPE DESCRIPTION z Qns NA 7 8 9 10 80 PUBLICITY ONLY NRC USF.

IssUED DESCBIPTIov ~45 o ~Npnn NA 7 8 4 ls 68 69 80 o NAME OF PREPARER M. S. BROWIII (616) 465-5901 p EXT. 398 0

0 ~i.