ML20046A372
| ML20046A372 | |
| Person / Time | |
|---|---|
| Site: | Cooper  |
| Issue date: | 04/29/1993 |
| From: | Horn G NEBRASKA PUBLIC POWER DISTRICT |
| To: | Milhoan J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| Shared Package | |
| ML20046A364 | List: |
| References | |
| NSD930497, NUDOCS 9307280012 | |
| Download: ML20046A372 (4) | |
Text
_ _ _ _ _ _
P.O.soment soumenasseusentassemens Nebraska Public Power District D'l2.".""
i EsD930497 April 29, 1993 1
Mr. James L. M11heen Ra6 ***1 "'"'"* rater 1
U.S. Euelaar E,, -1='
, Commission I
Regiam IT 611 Ryan Flaza Drive, suite 1000 Arti==*=, 21 76011.
Subject:
Stacas of S: ' -y ranemin==ne 'asd Diesel Gemarater Ptaal Oil Issues cooper amatear stacio.
MC Dookst No. 50 29s, t tew se. DFE.46
Dear Mr. Milbean:
4 l
On April 9,1993, a telemenforence call was held with the MC,. tm ' to a corrective action inspostion performed at Ceeper Bustaar station (m).1 Seven apparent issues were 1ammeified which the District agreed to resolve-prior to startup from tha surrent refueling outags. Tbs pistriot senseitted to semelve too-i of thaea issums, tbs survan1-testin6 requirement.s of _ _ _
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and partf adsta levels in the diesel generater fisst et1, prior f.e fast zeleed.
This letter d*======= the District's reseistian of these two specific issues and lists tha remaining five issuns which will be discussed ta future -...
i Surraillanca Tmatina.of the sesendarr cantalumspat NFFD was regassted te verifyithat tasting of the -__
" - y a==9= = 8 -===* was perforand-in accordance with the CBS Technical spoeifications. EEFB was also requested to evaluate whether testing to the I:7-
- = of tbs CEB Wia=1 specifiassions satisfies the als design as specified. in' she Updased Safety.
Analysis Report (User), and. to perform a satisfastery test in esserdemos with thsee requirasmess prior to fust reload. Lastly, NFFD was.,
M to seminate the preventive amin *- activities perfessed during reactor operaties that ensure secondary===*=i===ot is beta 6 **i****""d*
The fo11swin6 asciens have been sempleted:
1.
A review of secondary containment penetration drawings in eenjuontion with field walkdoens was performed to ensure that k--d=ry t r*=rf
. with adjaseet buildin6s or the outside acanophers had been idanef find.
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.M James I, Ni h en Pass 2 at 4 g
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- NED930497 i
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and seester me11 dings ses deter =i==dThe somree of the previam i
e modomete lias.
drain tank in the andommte amilding provided an s vented buLleings.
wee aseemp1'mhad by scac approved Work ItemA lasp asal has b e ones the tse 1
. This work deemmented in Design 'Giange 93-011.
93-1204, and'will be fully provided to the Resident Inspectore for reviser.A sepy of the Work Item hee been 3
A revies of both the licensing and design basis ma=*af====*
1aabogs test required by Gts v==hmeaal seesadery of the earveillamme r_, ar-
- - - * ** ---i n i W revise of tbs seesweary sensaismens laak t.1. A.7.".1.c and the De An fallowin5 this some est tagesseneses, Testing perfoamense t; Efemass, tu aise been perfass Assuranos Division.
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spesificastems andhave been, and are being. revised to meet.beth tbs v==h=
of the surv=811-
====d=ry -a Usat Additiemm11, design besie i
r=t=+=d t
7 portament lammes will be :roselved prior ta feel releed.. doors and to b
4.
revised to requireh Seemedary Comtat====s surveillanse Test Freesesse, "an foend* testin 6.3.10.8, has been
= * - -- :
t,- _ _ to a planc ~ g prior toe posfeendag eesrestive e
will allow verifiestion of operab111ty of the seemedary===g estags.. This for a reemolin the operattag cynia med treadia6 and tsaaking of enroeitt-==i===== destag resnits.
-e**--+4c limit of 1790 etin atemmy eaa Tre sThis procedere revie seet m nel pere = --d prior to startup.meistaintag g.tS inch wg; negative prosesse fee th s menciser) fler while This margin is provided me allow Seeroeme.
e vto.be d*$radation in the
-e-7
---aa-d ===-a-li +mit,... operating eyels wisheet aseeeding the Testataal 7 W-f
- lashege-rate.
_the.
t S,
h revision to survdi11=na= Test Precedure 6.3.10.8 requises th of the concret Building and Turbine amilding main vous11stian syst e recoget
- servios, and monitorin5 ; for any ne**- "le offset mas from
==taemim s.13 inch wg negative pressure in the Enester-Suileien the ab negative preneure in the amaeasta ausading ta lesered but only t as.
h inch w5 885etivo pressure versus removing th o.45 As een domenetrated durin5 reeeetservios due to the potential for e v===41 =a id= system.feem 9 t'L sommesse.
ehether any building interactione exist. testing, this apreseek will reveal cleanly metsbes system operation configurations with and withmAlso, this te P***F.
us eft-atte 6.
A satisfactory test of - the er tj
===*=4====e Surveillance Priw. adore 6/3.10.8 was sempleted on April 17 using the revised the Techminal specifications limit of 1780 ces was eiewi" I by The mergia to maintaining a ser flew of 1500 efa during the saat ans verifying 513 og negative pressure ese.being maintained.
c proceders hos been provided to the easident inspectors.A sepy of the sempleted test
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James L. Milhoes Page 3 of 4 NSD930497 7.
NFFD is reviseing certain programmatio champos designed to meinemin the aapability of the seeeedary a==r=<====t eering the operating eyela, h guidense of WIRES-1433, But stammard Tamhaiant spesifiaatises, is being used for this effort.
The changes inclues evaluating' the esistin5 periodio maintenemme of door and other peantration seals and leep aanla.
This review and any necessary preventivo =4=*======
s
._:*--- obanges will be ocuploemd prior to plant startap.
Bienal Gameratar Pta9} Oil Pgytinglata Imynla 3
Duria6 the eerrectivo estaan pro 5can inspection, it was imeted than Diesel Gemarator feel oil storags tank samples indiosted partionnato levels in easses of the tais preseeksral limit of 10 mg/1.
The final ett eseditian had been evaluneed, but eerrestive astions had met been tabem to rootese sba particulate levels to within the precedural limits. Instead an operebility ev=ta=**==t had boom perfossed indicating the per**-1=*= o.amaec was asseptable. Frier to itsel i
1^^d**:, NFFD 1ses requested to either lower the fusi eil par **=1== lavel to less thee the 10 mg/L ym::M+1 limit or provide as les - _,n
'= opesebility ev=1== e t - for. the higtser particulate levels.
EFFD was also f to consider revising Cus Tama=4a=1 Speastia=eh to Laalude dismal generator fuel
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oil partiew. late -; rd e4*=tisms, and to dev 1.p a course of assises to prevena l
-- :'i=; the established particulate limits in the future.-
N follmeing actions have been taken to resolve thia lamus.
1.
The main DiesmL esmerator (Do) fusi oil storage tanks and De day tasks have been filtered to redese the particulate levels to less thana 10 mg/1.
The No.1 Dc any tank ham alas been visually inspeoted inemanally. Based as the satistaatery results of the visual inspeetiam of No.1 De day teak, the No. 2 De day tank will met be tatsranaly inoposted.. The internal inspectima critaria for all fuel oil storage tasks will be re-evalented under itaa No. 4, 2.
The CRs surveillance procedure for testing diamel gemorator fool oil will be revised to reapaire corrective actien aka=1 A & 33 3 (natAata g[gg gggg oil particulata levela, speetfically to require restorattom of partieslate 1svela within the 10 mg/l limit within seven days.
This aettaa is canaiasmat with NUEEG-1433, 51R/4 Bransard Techeimal ; - 8 M = =** - -,
section 3.3.3.
This preesdure revision will be completed prior to plant startg from the re6eeling outa68-i 3.
MFFD will submit a license anseeness changs request to inserparats into CBS Teobaual Specifications the 10 mg/l particulate -limit and the carreotive socion requirement af NUREG-1433 Pete=***=* to the per**-1=*=
11mits, as a mi ni===.
This t request will be submitted by Juas 1993.
4 An industry suport in the maintenance of fuel oil quality will be retained to review emiatin5 CRs storale, amisteammes and sampling practices regasding fuel oil quality.
Any re----d-times resulting from this review will be expeditiously pursued.
s
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James L. uf %
l-Pass 4 Cf 4 EID930497 i
5.
DaApril 18, 1993, after tbs filtration activities noted la Item 1. above l
sore esopleted, a sample was taken of the thel la the mein feel oil i
storage taske and the No. 1 De day tank. The results seem received on i
April 17
- 1993, and i=dia=**d that all parameters were within
,-8'i=tism, ausept for esidation stability La the day tank.
Tbs j
l reemite for this parameter were 2.7 a5/100 ml agniast a r.__
^ =18 limit of f.0 mg/100 al.
The particulate 1sysl ta the No.1 DG day taak (the primary reason for the sample belag taken) wee 1.5 mg/1. The seem1ts i
for the emidation stability parameter are somembat genetiM1= shes to
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limitatisme in the tasting methodningy, and the fast that ihm reunits for 1
the same paresseur in the asia fuel oil tanks (the meerne of Seel for the j
day tanka) waru 0.4 and 0.6 mg/100 al. This test result and any eation
.q- 'M is presently being ev=1 n===d.
In any ease, the me.1 De day tamh j
ons opened and inspeeted as described la item 1 above,, and was refilled j
with heet from the main tanka at the sonolusion of that effort. Regarding i
~
i the Ee. 2 De day tank, a sample was takaa en dpril 26, 1993, and all j
pa-sare were found to be visamin specified limits.
We belisvo the above stated motions should resolve esqr commerme you may have bed -
j in these ese areas. Newswer. =1===1d you beve any additismal geostiamo or require additlanal infe==et=a. please amatant me at your =r14==t eenvendemme_ the five ether imemos identified dortag the recent teiaa==*==mene sail are betag addressed i
and will be diesessed in funera -..x;:
prime to y1amt startup from the I
presses rehaeling outage. 1these itame are listed below to emeure==d-rotandin5 i
and agreement of the issue in questies and for *- * =g purpeems.
1.
Es/D Analysere j
2.
Imeal Imels Rate Testing Criteria for one inch and less sentainment penetrations i
3.
Service Water System Int *5rity 4.
Pr====es testation Valve Testing 5.
Outstanding eenditions
, -
- ei== evaluation prior to startup 8
rely.
4 I
Born l
ear Power oreur Namager 1
/rg Attambeants cc:
U. S. Neoloar R*5ulatory commission Deemment centrol Desk Eashington, DC Me Aseident Inspeeter Geoper Emelear Station t
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