05000272/LER-1979-016-03, /03L-0 on 790220:control Operator Observed Zero Svc Water Flow Through Unit.Caused by Burned Out Coil in Solenoid Valve.Coil Replaced

/03L-0 on 790220:control Operator Observed Zero Svc Water Flow Through Unit.Caused by Burned Out Coil in Solenoid Valve.Coil Replaced

ML18078A950
Person / Time
Site:	Salem
Issue date:	03/05/1979
From:	Kapple A Public Service Enterprise Group
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML18078A949	List: 05000272/LER-1979-016, Forwards LER 79-016/03L-0 05000272/LER-1979-016-03, /03L-0 on 790220:control Operator Observed Zero Svc Water Flow Through Unit.Caused by Burned Out Coil in Solenoid Valve.Coil Replaced
References
LER-79-016-03L, LER-79-16-3L, NUDOCS 7903090266
Download: ML18078A950 (3)

LER-1979-016, /03L-0 on 790220:control Operator Observed Zero Svc Water Flow Through Unit.Caused by Burned Out Coil in Solenoid Valve.Coil Replaced

Event date:
Report date:
2721979016R03 - NRC Website

text

,,*

Report Number:

Report Date:

Occurrence Date:

Facility:

79-16/03L 3-5-79 2/20/79 Salem Generating Station Public Service Electric & Gas Company Hancock's Bridge, New Jersey 08038 IDENTIFICATION OF OCCURRENCE:

No. 14 Containment Fan Coil Unit Inoperable CONDITIONS PRIOR TO OCCURRENCE:

Operational Mode 1 Reactor Power 100%

DESCRIPTION OF OCCURRENCE:

At 1842 hours0.0213 days <br />0.512 hours <br />0.00305 weeks <br />7.00881e-4 months <br />, No. 14 containment fan coil unit was started in slow speed and secured three minutes later due to no indication of service water flow.

Performance personnel were notified and tests performed showed no service water flow in either fast or slow speed.

The fan coil unit was declared inoperable and the Action Statement for Technical Specification 3.6.2.3 was implemented.

Rework of the service water flow control valve and retests to verify service water flow were completed at 0020, 2-21-79, and the Action Statement was terminated.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

The cause of this occurrence was a burned out coil in solenoid valve SV-630 which supplies either closing air or flow control air to 14 SW223, the service water flow control valve for No. 14 C.F.C.U.

SV630 was found inoperable in a position which kept 14 SW223 shut.

The coil is believed to have burned out during the slow speed start at 1842 hours0.0213 days <br />0.512 hours <br />0.00305 weeks <br />7.00881e-4 months <br />.

ANALYSIS OF OCCURRENCE:

Technical Specification 3.6.2.3 Action Statement requires that with one group of containment cooling fans inoperable, restore the inoperable fan group to operable status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in hot shutdown within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

No. 14 C.F.C.U. was returned to service within six hours.

No. 11, 12, 13 and 15 C.F.C. units were available throughout this occurrence.

CORRECTIVE ACTION

The burned out coil on SV-630 was replaced and Surveillance Procedure SP(O) 4.6.2.3.A was performed to verify operability of the fan coil unit and service water flow indication.

LER 79-16/03L FAILURE.DATA:

Solenoid Valve SV-630 ASCO Solenoid Valve Company Prepared by A. W. Kapple Manager 2 Salem Generating Station SORC Meeting No.

13-79

1(7-77)

LICENSEE EVENT REPORT

. ~C~NTROL BLOCK: !---'-_...... _._!_._I._.__-!I(!)

(PLEASE PRINT OR TYP. REQUIRED INFORMATION) 6

!IE] I N IJ I s I G I s I 1 IG)I o I o I -1 o Io I o I o I o I - I o I o !(DI 4 I 1 I 1 I i I i 101 I I© 7

8 9

LICENSEE CODE 14 15 LICENSE NUMBER 25 26 LICENSE TYPE JO 57 CAT 58 CON'T la I 1 I 7

8

~:~~~ LIJ© I o I s I o I o I o I 2 ! 7 I 2 IG)I o I 2 I 2 I o I 1 I 9 I© I o I 3 Io I s I 2 I 9 I G) 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION ANO PROBABLE CONSEQUENCES@)

[§))] I During normal operation, after starting No. 14 Contairunent Fan Coil Unit, the [2:1))

Control Operator observed zero service water flow through the unit.

The unit was

~

secured and T/S 3.6.2.3 Action Statement was implemented.

Performance Department

[£))]

reworked a solenoid control valve and the unit was returned to service.

SP(O) iifil 4.6.2.3a was performed and-verified No. 14 Containnent Fan Coil Unit operabj.lity.

[§]2J No. 11, 12,* 13 and 15 CFC units were operable throughout this occurrence.

This is

[)))) I the third occurrence of this type (78-85, 79-01).

7 8 9 [9Jil 7

8 SYSTEM CODE Is I cl@

9 10

!':'::\\

LER'RO LVENTYEAA v..:J REPORT I 7 I 9 I NUMBER 21 22

CAUSE

CAUSE COCE SUBCCCE COMPONENT COCE Llj@ ~@IV !AIL [VIO !Pl@

11 12 13 18 SEQUENTIAL OCCURRENCE REPORT NO.

CODE I I Io I l I 6 I I_......,

I o I 3 I

~

~

~

v

~

~

COMP.

SUBCOOE

~@

19 REPORT TYPE

~

30 VALVE SUBCODE

~@

20 1=1*

31 REVISION NC. w 32 80 ACTION FUTURE TAKEN ACTION ON PLANT METI-IOD HOURS SUBMITTED FORM l>UB.

EFFECT SHUTDOWN

~

ATTACHMENT NPAD-4 PRIME COMP.

SUPPLIER COMPONENT MANUFACTURER W@W@ UJ@

L!J@

I 0_10 I 01 I 1.!J@

L!.J@

33 34 35 36 37 40 41 42

~ I A 14 I 9 j 9 I@*

CAUSE DESCRIPTION ANO CORRECTIVE ACTIONS @

43 44 47 I The cause was a burned out coil in solenoid valve 630 which supplies control air for o:::IlJ 14SW223, the service water flow control valve for No. 14 C.F.C.U.

The burned out o::IIJ coil was replaced and the C.F.C.U. was tested satisfactorily.

o:m 1

a 9 FACILITY

~30 STATUS

% POWER OTI-IER STATUS \\.:::;:!

[Im L.~J@ 11 I 0 I 0 l@l.__. _ _..N""""/..-A.._ __

7 8

9 10 12 1'3 ACTIVITY CONTENT

~

RELEASED OF RELEASE AMOUNT OF ACTIVITY ITTIJ L!.I@ W@)I N/A 7

8 9

10 11 80 METI-100 OF DISCOVERY DESCRIPTION @

DISCOVERY

~@I 0Eerator Observation 44 45 46 80 LOCATION OF REL.EASE@

NiA 44 45 80 PERSONNEL EXPOSURES

~

NUMBER

~TYPE OESCRIPTION er ITI2J I a I a I o lW@~ __

N..... /_A ____________________

7 8

9 11 12.

13 PERSONNEL INJURIES C-\\

ao NUMBER OESCRIPTION~

[QI] I ol o I ol@).__ _____...,.,N_.__A..__ _____________________________ ~

8 9

11 12 LOSS OF OR DAMAGE TO FACILITY~

TYPE OESCRIPTION

':::::J BO Eli] W@

NA a 9

,*o----~--------------...... ------~-------------------------------------------------------9~0 PUBLICITY

(.';;\\

E ISSUEOC,;\\ DESCRIPTION~

NRC US ON Ly o::IIJ Lz.lei....._ __

..;.N......,A,__ ___________

II II II I II I I I I 8

9 10 68 69 eo NAMEOFPREPARER~~--~-A_.~w~*~K_a~p~p=--l_e __ ~~~

PHONE: (609)365-7000 Salem Ext.

628