ML20087D386

Forwards Documents Re Plant Site Area Emergency of 1990, Which Are Potentially Serious Violations of NRC Regulations

ML20087D386
Person / Time
Site:	Vogtle
Issue date:	05/05/1990
From:	Mosbaugh A AFFILIATION NOT ASSIGNED
To:	Demiranda O, Robinson L NRC
Shared Package
ML20087D389	List: ML20087D386
References
CAL-2-94-15, NUDOCS 9508100306
Download: ML20087D386 (7)

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Ypn N.NW To: Lany Robinson, USNRC Of M

Oscar DeMiranda, USNRC Allegations Coordinator From: Allen Mosbaugh BT:

DATE N/34.

Subject:

Attached Allegations Dets 6440 The attached documents are Attomey l CIIent communications that I am providing to you because they relate to the vogde ages Ares emergency of 1990, are potentially serious violations of NRC reguladens, and may Involve willful misconduct try high levei Southern Nuoteeri GPC employees.1 request that you treet these as conadendal, and in the event that you decide this infomadon is required to be released thru a A8LB notificadon to GPC \\ Southom Nuclear or its representseves, that you provide notification to me or my attomey before you wound de so.

EXHIBIT A r

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'2-94-0T57 9508100306 950321 PDR ADOCK 05000424 G

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q ACTION STATEMENThe AppeceWe secoons:

Mode 8 and 6 AC Power (<23 ft.): WRh no OPERABLE emergency AC poser trains avedame. immediately take asion to runese one AC power train to service ASAP.

Mode 6 RMt (<13 ft.)

With no RWt trains OPERABLE 9:e 78 requtes suspension of "aN andons or operedens involvhg SN tesesse m the reactor deoey heat ined or a redualen h me toren concemedon of the fleesterCootent system andimmedlelsey inmises coneedve endons to futum me roasted MMR tram to CPWtAM.E status as soon as poestle'. In adman M eastninment nonstrations nnwkene sheet senses trem me naamste anmaenhore webia a haumL' Mode 8 RMt (<23 ft.)

With no trains OPWtASt.E inidste biennente anden to restore the requesd trains to CPWIAE2 eshes ASAP.

saouaNCEOF.E M ;

l on the moming of 3 20 90 Plant Vogtle Unit i deniered a SAs Afee Ernergency boosues of me ions of an oness and an osas AC powerames me reemerums a stNoop we the RCS ano containment pressure boundaries treached. TNe reuded in Wie loss of aN RHt coedng to the core which began to heat up. To piece tus pleM in a sede condition. RCS and containment integetty was restored try reinsteng covers and haknes.

speemoody me Containment equipment hatch was closed and sie semanns heten interlock was reenthrated. As of the evening of 33000, both meeste more inoperatie.1A was deciered inopereNo due to tature and 15 was inopomble dies to moedenenos. That l

conedon made both trains of RML Inoperet.as and placed Plant Vegle Unt 1 in en immediate aceton statement from sevenet Teen Spons, most impassady, AC power (Ts 34.1.2) and RHR (s.o.s.2).

On the evemne of S 2000 whte ets in mode 4, SRO teensed messe managere take 1.ackey and Samie Beasley made piene to reopen me contehmen telen. Cenooms wem expressed to them about reopening the containment hatch med removmg me 11eelen peduct homonf, that had been estatushed for acaldent recovery, eg. sosseinment integrtty. At this point, remoning in mode e and maintainha comesnent integrey wee blocking creast pam outage progress. Apparendy a verbal NRC univorm ehenge modes from mode a to modo s was requemed and grensed try the fetc on eramont sti eg weh the )uedecedon meing to pasos piant Vogde in a esser condmen gy anomesms weser inventory.

Having etteined this wolver, Southem Nuclear i GPC pannuled to tuulen the RPV head bons. The sensionmg of the need annomenshed me modo ebenge sum mede e to Mode s se esAned in Tech. Spoos.on or about Wie night of 3210g. Amerme made ehenge wee made. Immediate aedons to piece Plant Vogde in a segerconman wel respect to increewng water hventory and awedelde heet einha wem net team, met a esp of weder e

wee added to the RCS. Efforts to retum UnN 2 to power operedene, took precedonos over placing Unit 1 in a seier condition by adeng waterinventory (M and veng.

Commitments were made to the letC in a meeting on or about S434g not to open the EXHIBIT 1

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i The werver was approved try the NRC. The wower was limmed to the above aspoot and did not allow taidng any other TS pmheted monen or any uneefe er noMonservedvs acdon.

GPC did not ask for and was not grgited a waiver et any emisIM_BRItch Base.

.2111 and it they had, GPC ocued not have olaened the aeove gusted statement.

Without Doing seis to estabitoh that there was no increase in the festabMy of occurrence of consequences of an scoldent and no signdloent adely heezenas for a 3.0.4 wower to the RHR Tach. Spec. 3.9.8.2, me MtC consinly wondit net have grained the faquest.

t GPC's UNRTATED AGEW I

As of 3 2040 GPC had already autetantiety tendono6 the head as Sie ftPV, only Wie inef pees to senten the head to reest 2500 poi internet pressure wee nessed. One wendem why GPC couldnt have proceeded to add RCs inventory, e and veut censer only onway head,less than 80 pel) and place the remotor in a esfer annelse selena a wolver et aN.

in feat. on S 22 00 Corporate Gomeral Manager se shipman ammagned that nomine had.a___. ~ < ftCS fut ans went "

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• stanears precoce wee to compiele the head tenson esfore" S sed went. Was Wie waiver uses to try to obtain thru decepden, an NRC buy in to what Soustom Nuoiser iGPC know-it would not De granted fonhright?

GPC wanted the Mode change to open the equipment scosas has med other containment penetrepens for in containment wortt, venutellen, and LUtf and itJtf propersoons that were on ontleet path to the outage pmgress. Simes Wie wefverwas gented on 3 22 90 and both dienste 1 A and 15 were not desieret operatie NE 41 and 3-28 respectively. GPC could not have complied weh T8 3.9.8.2 ses 41 ge, therefore a enmaal pem sevmes of 10 days ocouned. Ten deps et poweronassmen on ene vague unit had a value in eenees at 810,000,000.

THE SAFETY SIGNf7MupdC5 SF GPC'S ACTIONS wth no operenes emergency AC power soumes, and we namelnment treeshed, and the RC8 open, on 3 22 90 Plant Vogue was intentionssy pleoed tient h Wie see ans emergoney acoldent conAguradon except that omite power wee nearsvedelde but neither disent was operstda. The design hosts for plant Vtigste annumesh ana e annie fenurg, Assumno nose et omne power aione, woute tems to an new ecomes boosues ans weise osues ines of RHR weh more host up. ne canamenant heesh wouw not tio etdo to be cloemd since this requires "nonnef" ofiste pesar. Adeng a single fatwo wouw defeat any midgetion of the sonedent, such as hventory main up vis gravity as.

Since the inittel RCS constions were from medioop, R is unthely See any substantial cocen0 could he otteined from steem generatore clue to air tierdmang.

WRheid coceng, the RSC at mkBoop goes to hoWng in shout 1 hear 40 minutes ( see NUREG 1410 Appu. GS), Shenly afterthis, the containment heemmes an uninhabileNe 212 F degree steem anverenment. Any othets to snanusty cleos Ses holdt are not possels. About a hours meer namng begins, the top of the core enoeven. Fast sees hagin to go to red heet. The fusi roes hurst and maions et aunes or ruessenvey go out the unde open comesnment equipment moness hench, an acoment on me cammene enese scouns.

This is not supposed to happen within the design hemis.

V0GTLEIdRIECIDACAL BPECFM:A110N ADERMAMN WWi respect to probehility or consequences at a core tienngng sonident as a 4

tneut et loss of RHR capsbety ( either fnen a bomn alueenmiteing articalmy ever!! or from overheating ), there is no substantief affassoas between MM A PAGE [ OF 7 PAGE(S)

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' 3. GPC vloistad the commamems made to the NRC in me messig en er about

. 3 22-90 not to open the comeinment equipment hatch are a teest see RAT and one dieselwere OPERABLE.

4. GPC's action of opening me containment equipment hate and gemely amor containment penstnmens on or about S 22 80 whde in a Technensi Speemesson

'Immesiste setten statement" due to having no OPERARE IDet sysans was impsper and unsafe.

No 80.89 asfuty evolustion was performed for this almannet spemeng conAguretten.

A 80.80 evolueden would have faded due to inomased assWent eensequeness.

5. The encompiste end miniseens TS acope and seissuve essey tests passated in GPC's waiver request, coupled with the =* map =* amans to Ara apen me hatch, then commiste meloop outops work, men to bogh e aos vent, tones to a

suggest met GPC's mouves in imming the wolver request wem men meeveemd by meidng outeos pragmas then soeunng nuelserasfaty.

s. openmg the containment sessmen hatch and possesy emer coneshment pensemeens whee in a Technhal speamessen 'Immeeste aseen statement" due to having no OPERABLE RMt systems, pieced Ples W in an umWgg conanennumids me easian names.

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GPC violated me intent of Technical Speamcomen 'Irnmsesse antes sessemens" weh regan to Ts s.s.a.2 ans (s.a.1.2) once the moes emesse see mese by taidna nonennnervenve aminns (breachms conesinment mense a me safety tests.

see eienusson above ness (GPC vioisses me ineont of 'inenemme Aeson')

s. GPC vioisses me Teenical sposesemen immeeses assou' regainness to retum an Ac power snun to oPERABluTY ASAP. Saumsm Nummeri GPC pm forth a aman than ameauste enort try altaming as gest, mesumes, menessment and manpower esorts to savance tne outage sahesule to anne onorey over rs eNons to most the immedless accan simamens of Teshems speamesmans.

s. GPC answed me nnencial pnerny or retumme unt 2 to pesar operseen to impen the assety of unit 1, by eveens ressumes nesses to e and went una i to be uses on unt2.

10. Vogue Teentosi speamoseon action semesmene forfeet mens s iis emins OPERABLE

• are not asequaes and are inoonsessent unh Asses e Teen spoos for Inesunguishette conssons. see manussion 'vosse RHR Tosh, apso Adequeer above.

12. Yleistions 1 thru 9 above were mone wlNhdy and in the Asse af annesms raised by plant pomannel abow the asfaty of sue andons.

13. visessone 1 meu e aseve were annnes by er known to hept savat plant and corposee management at me smo mer assume.

14. Vloissons 1 thru 9 above were moevated saisir by me deste to sevenes me omose ano power generosen sessuses, to save in emessa af 810,000,000 serme company ens benent sie inevkluels eru their pomonal anneuf aviser sanountatmales by retuming Plant voges to power Genoment mero ropter.

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EXHIBIT 3

REPORT OF INTERVIEW 0F ALLEN L. HOSBAUGH On May 5,1994, Allen L. MOSBAUGH, former Acting Assistant General Manager, Plant Support, at Georgia Power Company's (GPC) Vogtle Electric Generating Plant (VEGP), was telephonically interviewed by Senior Investigator Larry L.

Robinson, Office of Investigations

. Nuclear Regulatory Commission (NRC),

at his residence, telephone No.

The nature of the interview pertained to MOSBAUGH's allegation at ad deliberately violated VEGP Technical Specificitions (TSs) 3.9.8.2, 3.4.1.4.2, and 3.8.1.2 by breaching containment integrity and making a mode change at VEGP Unit I with both emergency diesel generators (EDGs) inoperable.

MOSBAUGH advised that he had provided the details of his allegation to NRC in the letter he had faxed to NRC earlier that day (May 5,1994). He stated that he did not have much to add to those details. MOSBAUGH advised that his basis for alleging that these TS violations were deliberate was that the VEGP personnel involved in opening the containment equipment hatch and making the mode change knew full well that both Unit 1 EDGs were inoperable. He stated that neither Unit 1 Residual Heat Removal train could be considered operable if both of these EDGs were inoperable and therefore, containment integrity must be maintained, and no mode change made.

MOSBAUGH opined that the continuation of outage activities, which necessitated the opening of the equipment hatch, was more important to VEGP upper management than preserving containment integrity until at least one source of emergency power could be restored to operability.

This Report of Interview was prepared on May 6, 1994.

442W N

Wrfy L.Aobinson, Sr. Investigator Office 6f Investigations Field Office, Region II EXHIBIT d --

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Case No. 2-94-015

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EXHIBIT 4