ML20107E222

Forwards Preliminary AO Rept 50-219/74/7

ML20107E222
Person / Time
Site:	Oyster Creek
Issue date:	01/23/1974
From:	Carroll J JERSEY CENTRAL POWER & LIGHT CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML18039A986	List: IR 05000219/1970007 IR 05000219/1971001 IR 05000219/1971002 IR 05000219/1971003 IR 05000219/1971004 IR 05000219/1971005 IR 05000219/1972001 IR 05000219/1972002 IR 05000219/1972003 IR 05000219/1972004 IR 05000219/1972005 IR 05000219/1972013 IR 05000219/1972025 IR 05000219/1973003 IR 05000219/1973004 IR 05000219/1973006 IR 05000219/1973007 IR 05000219/1973008 IR 05000219/1973009 IR 05000219/1973010 IR 05000219/1973011 IR 05000219/1973012 IR 05000219/1973013 IR 05000219/1973014 IR 05000219/1973015 IR 05000219/1973016 IR 05000219/1973017 IR 05000219/1973019 IR 05000219/1973020 IR 05000219/1973021 IR 05000219/1973022 IR 05000219/1973023 IR 05000219/1974001 IR 05000219/1974002 IR 05000219/1974003 IR 05000219/1974004 IR 05000219/1974005 IR 05000219/1974006 IR 05000219/1974007 IR 05000219/1974008 IR 05000219/1974009 IR 05000219/1974010 IR 05000219/1974011 IR 05000219/1974012 IR 05000219/1974013 IR 05000219/1974014 IR 05000219/1974015 IR 05000219/1974016 IR 05000219/1974017 IR 05000219/1974018 ... further results
References
FOIA-95-258 NUDOCS 9604190249
Download: ML20107E222 (1)

Text

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1 To:

~ James Pi'0'Reilly..

?plyectorate of. Itagulatoiy Opsetions

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631'. Park Avenue King of, Prussia [' Pennsylvania -

19406 From::

Jersey Central Power 6 Light Company Dystof Creek Nuclear Generating Station. Docket #50-219 Forked River, Newl Jersey. 08731-Subject :

Abnor:nal 0ccurrence Report No. 50-219/74/

7'-

The following is a preliminary report being submitted-in compliance with the. Technical. Specifications I

paragraph.6.6.2..

Prcliminary Approva1:-

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3 1/23/74' EJ. Ts Carroll, Jr. [

Date I.

ce! Mr. A. Gimmhusso p

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As Pcund As Left Nominal l

Trip Point-Trip Point Trip Point 203A 1067 psig 1067 psig 1068 psig Moss 1068 psig.

1068 psig.n 1068.psig 1066 psig' 1066 psig-203C 1066 psig M03D 1073 psig.

1066 psig~

1066 psig APPARENT CAUSE

. Design:

Pacadure-0F OCCURENCBt Manufacture Unusu'al Service Condition Installation /

Inc. Envi nnaental construction-component. Failure'.

Operator

,_ Other' (Specity)-

'a

.,..., w

%e reason for..ghe' &ange in setpoint~1h. underainvestigation.

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ANALYSIS ' 0F..

The safety significance of thisievent lies in. a-loss of system OCW RRENCB:

redundancy. Had a pressure excursion occurmdi the redundant sensor, RE03C,'would have functioned properly and would have terminated the pressure transient in conjunction with the pro-

- m,y,.m

.--. w,, mm,&

., - y.._

w.,

per actuation of ethe RB03A and< B sensors..

CORMCr1VE The sensor was recalibrated and returned to.sorvice.

ACTION.

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FAILURB.IATA:

Manufaeturer: Barksdale -

.....JYPe i.. f ressuxv ActMat.(d switch._

l N i$t E $75Il! M i

5 MWR M

/.E$,.2k Pnpared by:-

hhj i_

W-Date:

n.

I 9A+3 6 vLav 10P-

' AnStina (JABBcn ini 'JM5

' Report.Dete t 1/23/14 Occurrenc'):

1005 1

U,

,,)

OYSTER CREEK NUCLEAR GENERATING STATION

' PORKED RIVERf.NEW::JERSEF 08731:.<

Abnormal.0ccurrence~

, Report'No. 50-219/74/ g

. 1 DELE 1PICATION:

Violation of.the Technical,spect'fications, paragraph 2.3.3 '.

OP 000URRENCBt failure of 'tho'RB03D xeactor high pressure:sonsor to trip at-9 a point corresponding to a reactor pressure of11060 psig. :

'Ihis. event is cons'idered to bo an abnoras! eccurrence/as:de-fined in the; Technical Specifications, paragraph ~_1.150_.

\\

CONDITIONS. PRIOR-70 DCrmnnNcer -

Steady,.StateiPower

..._._ Routine Shutdown Hot Standby Operation Cold Shutdown

_ Load Changes During Refuelir.g Shutdown.

Routine Power Operation x-Routine Startup.

_ Other 4Specify)

' Operation Rc6ctor Thermal Power.1980 Wt tilectrical Power.

- 342 W e s

Recirculation Flow

-.27.8.X lo Ib/hr...

Reactor Pressure

- 1020.psig 1

. a.

l DESCRIPTI(N While performing.a routine monthly; surveillance test on the" 0F'OCCURRENCH:

9--

reactor high pressure sannrs;.RE03A, 'Br C, and D,'it was-ob-served'that RB03DitrippedFat 1073 psig.. his it"7 psig above-Ita> normal' trip point of.:.1066 psig which reflects a sensor head.

4-correction.ofi6 psig. Dersurveillance test results werv.as follows:

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MEMO ROUTE SLIP rorm Arc-os inev. Mar i4. i947 Attu 024o

$** ** * '>'u t t hd*-

F *' coacu"'ac e-Fa' ac<iaa-N.i. a ad,.iora.

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r r sicastor..

roc iavorma tion.

TO (Nam.and snit)

INiflALS ALMARK5 R0 Chief, FS&EB JERSEY CENTRAL PORER AND LIGIIT

's is RO:HQ (5)

^'

RO Files OYSTER CREEK on:

Central Mail & Files Regulatory Standards (3)

RO #50-219/73-22 TO Dir(Name and Unit)ectorate of INITIALS REMARK $

Licensing (13)

The above inspection report is forwarded for OGC

,y, information.

Distribution will be made by Regional Directors (II, III, IV) this office to the PDR, Local PDR, NSIC, DTIE, TC (Name and unft)

INITIALS REMARKS and State

• Representatives after review by the licensee for proprietary information.

,y, R

FROM (Na and unit)

REMARKS fl ofW W' E. J. Brunner Region I M

PHONE 96 DATE 8-337-1246 1/23/74 USE OTHER SIDC FOR ADDITIONAL REMARKS cro r 1918 O 445 of 8 9

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