ML19031B511

Licensee Event Report 1978 for Reportable Occurrence 78-38/03L Re No. 11 Steam Generator Flow Channel II Inoperable

ML19031B511
Person / Time
Site:	Salem
Issue date:	08/02/1978
From:	Librizzi F Public Service Electric & Gas Co
To:	Grier B NRC Region 1
References
LER 1978-038-03L
Download: ML19031B511 (4)

Text

..

0.PS~G* e REGULATORY DOCKET FfLE COPY Public Service Electric and Gas Company 80 Park Place Newark, N.J. 07101 Phone 201 /622-7000 August 2,* 1978

(.--,0

..c.r,1

'{ -.

--1 Mr. Boyce H. Grier .- c-:::u Director of USNRC  :-.::en

-:*__ -'C

• --1 Off ice of Inspections and Enforcements Cl Region 1 631 Park Avenue King of Prussia, Pennsylvania 19406

Dear Mr. Grier:

LICENSE NO. DPR-70 DOCKET NO. 50-272 REPORTABLE OCCURRENCE 78-38/03L Pursuant to the requirements of Salem Generating Station Unit No. 1 Technical Specifications, Section 6.9.1.9.b, we are submitting Licensee Event Report for Reportable Occurrence 78-38/03L. This report is required within thirty (30) days of the occurrence.

Sincerely yours,

),~

F

• P

• i .~

L 'b r1zz1 General Manager -

Electric Production CC: Director, Office of Inspection and Enforcement (30 copies)

Director, Office of Management Information and Program Control (3 copies)

The Energy People 95-2001 300M 10-7~1

v Report Number: .38/03L n

Report Date: . 8/2/78 Occurrence Date: 7/12/78 Facility: Salem Generating Station Public Service Electric & Gas Company Hancocks Bridge, New Jersey 08038 IDENTIFICATION OF OCCURRENCE:

No. 11 Steam Generator Steam Flow Channel II Inope:i;able COND.ITIONS PRIOR TO OCC.URRENCE:

Op~rational Mode 1, Reactor Power 100%

DESCRIPTION OF OCCURRENCE:

At 1045 hours0.0121 days <br />0.29 hours <br />0.00173 weeks <br />3.976225e-4 months <br />, No. 11 Steam Generator Steam Flow Channel II failed low.

Steam Generator level control was placed in manual. Technical Specifi-cation Action Statement No. 7 for LCO 3.3.l.l was implemented and the channel placed in the tripped condition. Instrumentation personnel were notified and after investigation, found a faulty Elco pin connector on the square root module. Pin connector was repaired and channel retu~ned to operable status at 0830 on 7/14/78.

DESTGNATTON OF APPARENT' CAUSE' OF.OCCURRENCE:

The cause of this occurrence was component failure . . Faulty connection on an Elco pin connector to a Hagan Square Root Module caused the channel to fail low.

• ANALYSTS' OF' OCCURRENCE:

Technical Specification 3.3.1.1, Action Statement No. 7, states that with the number of operable channels one less than the total number of channels, startup and/or power operation may proceed until the performance of the next required channel functional test provided the inoperable channel is placed in the tripped condition within one hour. No. 11 Steam Generator Steam Flow Channel II was placed in the tripped condition within the 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> allowed and remained in that condition until it was returned to operable status.

CORRECTIVE ACTION:

Elco pin* connections on the Hagan Square Root Module were cleaned, straightened and tightened. Channel calibration check performed.

Function test confl.rmed operability.

LER 78-38/03L "

FAILURE DATA:

N/A Prepared by----=-=~~::£:.:::~:::..::...------~

T. L. Spen~er SORC Meeting No. ~~-.:...--=-::.-~~~---

47-78

(7-77)

• LICENSEE EVENT REPORT

• co...-RoL *Lac<,  ! I I ,. j 0 . !PUASE PRINT oR TVPE.L REau1RED 1NFORMAT10N1

[IE] IN IJ, Is 'I GIs I 1 IQ)I o I oI - Io Io I oI o I o I - I o I o IQ)l 4 I 1 I 1I1 I 1-IG)I I I© 7 8 9 LICENSEE CODE 14 15 . LICENSE NUMBER 25 26 LICENSE TYPE :JO 57 CAT 58 CON'T

[IT!]

7 B

~~~~~~ L1J© I o I s I 60 61 oI o I o I 2 I 1 I 2 101 o I 7 I 1 I 2 I 1 I a I© I o Ia I o I 2 I 7 la .I© OOCl<ET NUMBER 68 69 EVENT DATE 74 75 REPORT CATE 80 EVENT Of:SCRIPTION ANO PROBABLE CONSEQUENCES@

[)))) I During normal operation, No. 11 S/G Steam Flow Channel 2 failed low. ,,I

~ I S/G level control shifted to Channel 1. Channel 2 placed in tripped -I II@ condition * . T.S. Action 7 for LCO 3.3.1.1 implemented. Channel .returne<jl.

[ill] to service following repair on 7/14/78. ~his is the fourth occurrence

[ill] of this type.

[ill]

lIEIJ

7. B 9 so SYSTEM CAUSE CAUSE COMP. VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE

[§JI]

7 8 II IB I@ w@ L£1@ IIINISITIR!ul@ L!J@

9 10 11 12 13 18 19 w@

20 SEQUENTIAL OCCURRENCE REPORT REVISION

~ REPORT NO. CODE TYPE NC.

LEA/RO CVENTYEAR

~ REPORT NUMBER I7 I8I 21 22 l=.J 23 I 01 31 a1 24 26 k:::J 27 Io 28 I 31 29 L1;J 30 l=1 31 w

32 ACTION FUTURE EFFECT SHUTDOWN (.;::\ ATTACHMENT NPR0-4 PRIME COMP. COMPONENT TAKEN ACTION ON PLANT METHOD HOURS ~ SUBMITTED

• FORM ::iUB. SUPPLIER MANUFACTURER L1Ll@L1.J@

3J 34 W@

35 W@

36 Io Io Io Io I 37 40 l.!J@

41 Ll!J@

42 l!!J@

43 I wI 1 I 2 I o I@'

44 47 CAUSE DESCRIPTION ANO CORRECTIVE ACTIONS@

OJ)) I The cause of this occurrence was faulty pin connections on the Elco Module connector. Pin connector was repaired and the channel calibra-tion check performed. Completion of functional test confirmed OJI] I operability.

ITIIl 7 8 9 80 FACILITY STATUS  % POWER OTHER STATUS IJQ\

1.:::::,1 METHOO OF OISCOVERY DISCOVERY DES~RIPTION

(.;':;\

DJI] W@ I ll 0I 0  !@! N/A. I W@I Operator Observation 7 8 9 Hi 12 1'3 44 45 46 80 ACTIVITY CONTENT ~

AMOUNT OF ACTIVITY ~ @)

w @) L!J(§ I RELEASED OF RELEASE *.LOCATION OF RELEASE

[ill] N /A I I . N/A 1 a 9 10 11 . 44 45 80 PERSONNEL EXPOSURES t:::;-,

NUMBER (.;:;\TYPE DESCRIPTION

[ill] I o I o I o lW@.____N_.../_A_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ___

7 B 9 11 12 13 80 PERSONNEL INJURIES I'.::\

. NUMBER DESCRIPTION~

ITJI]

1 a g Io! o I o!~.__ 11 12

______~N~A~------------------------------------------

80 LOSS OF OR DAMAGE TO FACILITY '4J' TYPE DESCRIPTION ~

ITJI] UJ@) *

• N A 7 8 9 10 . 80 PUBLICITY C'\ RC SE Q ISSUEDt::":;\ DESCRl.PTION ~ N U Nl y "'

ITE] Lzje;_.,._*_ _ _ _ _N...._A_ _ _ _ _ _ _ _ _ _ _ _ _ ___, I I I I *I I I I I I I I I~ 1 1 8 9 10 68 s9 eo ;

NAMEOFPREPARER~~--T~----L_.__s~p~e .....n_c~e_r__~~--~~- PHONE: (609)365-7000 Salem Ext.~

528 "