05000285/LER-1976-005, Suppl 1 to LER 76-05/03L:on 770210,recirculation Actuation Pressure Switches Found Out of Tolerance.Cause Not Stated. Switch Will Be Calibr Monthly Until New Switches Installed

Suppl 1 to LER 76-05/03L:on 770210,recirculation Actuation Pressure Switches Found Out of Tolerance.Cause Not Stated. Switch Will Be Calibr Monthly Until New Switches Installed

ML20087L013
Person / Time
Site:	Fort Calhoun
Issue date:	02/10/1977
From:	William Jones, Gordon Peterson OMAHA PUBLIC POWER DISTRICT
To:	Howard E NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML20087K990	List: 05000285/LER-1976-005, Suppl 1 to LER 76-05/03L:on 770210,recirculation Actuation Pressure Switches Found Out of Tolerance.Cause Not Stated. Switch Will Be Calibr Monthly Until New Switches Installed ML20087L018
References
FC-47-77, LER-76-05-03L-03, LER-76-5-3L-3, NUDOCS 8403260398
Download: ML20087L013 (5)

LER-2076-005, Suppl 1 to LER 76-05/03L:on 770210,recirculation Actuation Pressure Switches Found Out of Tolerance.Cause Not Stated. Switch Will Be Calibr Monthly Until New Switches Installed

Event date:
Report date:
2852076005R00 - NRC Website

text

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(l LICENSEE EVENT REPOF] 50-285/76-s uupplement 1 ,

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. CONiflOL ULOCV l l l l l l_)o (ptEAr.t entrJT ALL ntcuinED INront.1ATiorJ) i f

t art fl'.I( (Ct PJr,C E v( PJ f PJ 3 '/ s t if f fi,f PJUtAf.! n t vPF t y rf h {:tl I:! FlC l!il1l14 l 0 l O!-l0_ l 0_ l 0 l 0 l Ol-l0 l 0 l lbl1 l1 l 1 l .!j

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[VL f ji Di'M: 8TI' J f J

@ lpurin; the =nths of AprM , I&t , Ju' ,

JuP1, Aur unt . 9eptonhar rr. ? DeconT er. [95. nnd L3 7 ou I

@ [ January,1977, the Recirculaticn Actuation Proncure,_Cvit&n vere f-'md to bmt.. 60

/ 6, O ldritedCutOftheCr'.librationprOceduretolerSCCPG. _l LU 7 89 hu 7 'l u UU 7 U3 m. .

,.,ftv i.e.. ccwc. . ccvecNt '.T r ct t o: I ccin i No;f cars curpaa ei.e.;. e. vi n vo f.f cq fl ! A l lE l lI !!* !S !'" I n I trJ LaJ la Io 17 Io I IYI 7 UU 10 11 12 1/ 43 44 47 40 CAU5E DEGCMTIOf4 g p ,. n ., , u o 73ael ,3, 3g5_;.'1855 cvitchea trere founr1 to ha.ve <irif tni cut o' r-nH fi -edl 7 a9

@ [ cation. The drift did not result in the violation of any limitin" conlitf or: for 60 l

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[op: ration. l 7 OS 60 T AC".lT Y MCIMOO CF N PO%;r4 OTHEr4 OfATUS C EC 2a r, < C' GOO S E M OCSCT4'PfiOf 4 sta nd 11 l l l l l Ibr:nal Puver 0p. l lB l l Surveillance Tectint- l 7 6 9 10 12 13 44 45 40 63 F Odf CC AC f rstTY CC "J T; rJ T l'!Lf ? 3'O Af/C;;?JT CF #CTviv LOCAT'Cr4 Of AEL EASE n^

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Pf HSONNEL EXPOGUhES PEM C F 'I feet DECTPTION ,

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PCMCCf1NEL .?!JUR EG m'mta c r :ct..o ricN

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7 09 11 12 Of FSITE CONSEGULNCCS

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h l UA 7 39 U0 LOSC CR OfNAGC TO FAC LITY T vrr ccr.civpf r,r4 7 09 b 10 l UA 00 PtJULOTY

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CPO 481 607

O Lbi 40-235/76-5 =Oeme=< 1 Puce Taa

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ATTAClie.:;T 1 Ca r.3tv /=tiv.:f o Ac ctated in f.EIi 50-T'"5/76-5, the recirculation actu ttica preocure cvitchen vere cf .:ci;ed monthl:, to verif y cetr^ int und linir;ico cetroint ch.ft. Durin tne mont.b:, o f April , ::::y, June, Jtt!.7, Aucact , Eurtember r.nd December, 1976, anl Jcnu tr/,1977, th; cuitchen vere fcund to have drif ted out of the calibration procedure tolerance.

I The Fort Calhoun Statica Unit I!o. 1 cafety injection cyctem, if required to ope rar.e, requires 283,000 callonc of borated uater pluc a minimum of 23,000 Cal.lon:. cf borated water to be used for p=p cuction during the time required to sviten to a recirculation made of operation.

The recirculatica actuation critch setpointo are calibrated monthly; thic calitratian, which mini .ticas drif t , coupled stith the hicher level maintained in the ufoty in,* ectiv:. and r efuclinc : .t:r tank (CILJ.,*1') incur ea the at no I

tima veru the minic.ua berated water inventer:/ requir : ento violated, t

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. I LElt 50-235/76-5 Supplement 1 O * .O \

Page Three i.

ATTACI"!EUT 2 l l

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l' Cm rect,ve Act.icn ,

The Barhadale Prec:ure C..' itches were found '.o have a cetpoint drif t in execca of the enlitration prceadure. The evitch vill te calibrated on r.  !

tionthly basi 1 until new preocure cvitche.s can be inctalled under Decign Change l Ecquest 75a-36.

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1E11'50-285/76-5 Su n caent, 1

.Page l'our ,

l ATTAcic.it:T 3 1 l

F;d lu- r .tn l The cetpoint drift va; noted and reported au lintel belev:

Abnormal Occurrence 50-235/75-5 Licensee Event Ileport 50-265/76-5 ,

Op eutions Incident '(6-31 l Operaticna Incident 76 47 l Operations Incident 76-5h  !

Operations Incident 76-75 Operations Incident 20 Operations Incident 51 l 1

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• A 'J M A f* fl 10 ? # T E L L Pet 0 fit C '10 . a. 0 0 0 AlifA CODL 4 0

Febntary 11, 1977 FC-h7-77 -~

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2s,e i i,..) > :; s Mr. E. Morric Itoward D " ' '/j'k[,g h U. 3. I:ucle:ar Regula;ory Cat.aircion y 0, (Sp i '/./g Q Recion IV i-V, eg e*r.[8//

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v2.1 Hyr.n Plc:a Drive A . 1.!..f

.~. , m. e. ao 012 IE FILE COPT y

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De.tr !.h . IIoward :

Reference:

Fort Calhoun Station Unit Ilc. 1 Doer.ct !!O. 50-285 In accordance VLth the Fort Calhoun Statien's Technical Specifica-tionc, the Omahn Public Power Dintrict, ac holder of facility operatin.3 licenae DPR LO, submits three copies of the following supplement to licenace event report 50-265/76-5 to catisfy the requirements of Regula-tory Guide 1.16.

Sincerely, 1

@)lsit l/70' W.C"Jo)nes SectfonMantccr Operationc WCJ/UDD:rge Enclocurec cc: Director, Office of ManaCenent Infor:aation and ProGrc.m Control U. S. !!aclear Reculatory Conniccien Washincton, DC 20555 (3)

Director, Office of Inapection and Enforcement U. G. liuclear Reculatory Cceniacion Unchinct.cn, DC 20555 (30)

Mr. L. C. Shalla SAItC Chairm'.n PhC Chairman Mhd Port Culhoun Filo (2)

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