ML17292B305

Forwards,For Info & Use,Transcribed Copies of 980311 Notifications of Reactor Trip Per 10CFR50.72

ML17292B305
Person / Time
Site:	Columbia
Issue date:	03/30/1998
From:	Gwynn T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
To:	Parrish J WASHINGTON PUBLIC POWER SUPPLY SYSTEM
References
NUDOCS 9804020310
Download: ML17292B305 (59)

Text

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REGUL.

ORY INFORMATION DISTRIBUT SYSTEM RES)

ACCESSION NBR:9804020310 DOC.DATE: 98/03/30 NOTARIZED: NO FACIL:50-397 WPPSS Nuclear Project, Unit 2, Washington Public.Powe AUTH.NAME AUTHOR AFFILIATION GWYNN,T.P.

Region 4

(Post 820201)

RECIP.NAME RECIPIENT AFFILIATION PARRISH,J.V.

Washington Public Power Supply System DOCKET 05000397'UBJECT:

Forwards, for info & use,transcribed copies of 980311 notifications of reactor trip per 10CFR50.72.

DZSTRZBDTZON CODE:

1E51D COPZES RECEZVED:LTR I

ENCL 2 S1ZE:

8/

TITLE: File Dist for Region Document (50 DKT):Region,

PDR, LPDR, NSIC NOTES:

RECIPIENT ID CODE/NAME POSLUSNY,C COPIES LTTR ENCL 1

1'ECIPIENT ID CODE/NAME COPIES LTTR ENCL INTERN

. FILE CENTER EXTERNAL: NRC PDR 1.

1 1

. 1 RGN4 FILE 01 1

1 NOTE TO ALL "RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTE. TO HAVE YOUR NAME OR ORGANIZATION REMOVED FROM DISTRIBUTION LIS OR REDUCE THE NUMBER OF COPIES RECEIVED BY YOU OR YOUR ORGANIZATION, CONTACT THE DOCUMENT CONTR DESK (DCD)

ON EXTENSION 415-2083 TOTAL NUMBER OF COPIES REQUIRED:

LTTR 4

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~P,g REMI Wp

+**<<+

UNITED STATES NUCLEAR REGULATORY COMMISSION REGION IV 611 RYAN PI.AZA DRIVE, SUITE 400 ARLINGTON,TEXAS 76011.8064

~g 30 l998 Mr. J. V. Parrish (Mail Drop 1023)

Chief Executive Officer Washington Public Power Supply System P.O. Box 968 Richland, Washington 99352-0968

SUBJECT:

TRANSCRIPTS OF 10 CFR 50.72 NOTIFICATIONTO NRC

Dear Mr. Parrish:

\\

On March 11, 1998, personnel at your Washington Nuclear Project, Unit 2 notified the NRC Headquarters Operations Officer of a reactor trip pursuant to the requirements of 10 CFR 50.72.

Enclosed for your information and use are transcribed copies of the notifications. You may find the transcripts helpful in your overall assessment of the Supply System performance during this event, and to identify areas in which future communications might be improved.

Should you have any questions concerning this matter, we willbe pleased to discuss them with you.

Sincerely, Thomas 6.lynn, Director Division of Reactor. Projects Docket No.: 397 License No.: NPF-21

Enclosures:

Transcripts of 10 CFR 50.72 Notification to NRC CC:

Chairman Energy Facility Site Evaluation Council P.O. Box 43172 Olympia, Washington 98504-3172

~

'9B04020310 9B0330 PDR ADQCK 05000397 T

PDR

Mr. J. V. Parrish MAR 30 I998 bcc to DCD (IE51) bcc distrib. by RIV:

Regional Administrator DRP Director DRP Director, WCFO Branch Chief (DRP/E, WCFO)

Senior Project Inspector (DRP/E, WCFO)

Branch Chief (DRP/TSS)

Regional Counsel WCFO File Resident Inspector DRS-PSB MIS System RIV File To receive copy of document, Indicate in box: "C" = Copy without sures "E" = Copy with enctosures "N"= No cop RIV:DRP/WCFO C:DRP/E RC D:DRP FRHuey 3/

/98 HWong-3/

/98 WLBro n 3/ O/98

/f

/ V OFFICIAL RECORD COP TPGwynn'".'"

3/';; /98/

Mr. J. V. Parrish MAR 30 l998 bcc to DCD (IE51) bcc distrib. by RIV:

Regional Administrator DRP Director DRP Director, WCFO

. Branch Chief (DRP/E, WCFO)

Senior Project Inspector (DRP/E, WCFO)

Branch Chief (DRP/TSS)

Regional Counsel WCFO File Resident Inspector DRS-PSB MIS System RIV File To receive cop of document. indicate in box: "C" = Copy without e sures "E" = Copy with enciosures "N"= No cop RIV:DRP/WCFO FRHuey 3/

/98 C:DRP/E HWong 3/

/98 RC WLBro n 3/ 0/98 P

/ y OFFICIAL RECORD COP D:DRP TPGwyn 3/ '98

0, I

UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION

-X In the Matter of:

TELEPHONE INTERVIEW OF Case No.

(CLOSED) 10 12 13 U.S. Nuclear Regulatory Commission Two White Flint North 11545 Rockville Pike Rockville, MD 20852-2738 14 15 Wednesday, March 11, 1998 16 17 18 19 The above-entitled matter came on for telephone interview, pursuant to notice, at 9:11 a.m.

20 BEFORE:

21 NRC OPERATION 22 23 25 ANN RILEY G ASSOCIATES, LTD.

Court Reporters 1250 I Street, N.W., Suite 300 Washington, D.C.

20005

PROCEED I NGS NRC Operation (inaudible)

Yes, sir.

This is calling from. WNP2 about to make a

notification.

Okay, sir.

You should have a fax coming through at this time.

10

Yeah, there's one coming through right now.

Can you hold on, please?

I can hold.

13

[Pause.j Hello?

15 Yes 16 17 Okay. I'e got an event notification t,ime of 19 -- I'm sorry -- 0911.

19 Zero-nine-eleven?

Eleven.

Okay.

I understand this is 20 HNP2?

21 That is correct.

Okav.

And your name again?

A 3 24 25 Okav Okay.

And I did receive a

one-page

fax, an=

I need you to read this to me, pleas=.

AN!:

LEY F

ASSOCIATES, LTD.

Court Reporters St:eet.

N W

. Suite 300

~

A GAPA@

I '

, h,

Okay.

Starting at the beginning, we it's -- do you want me to read the description to you?

Yes, please.

Okay.

Reactor scram apparently due to a main generator trip.

Okay.

Can you tell me, did all the rods fully insert?

Yes, all the rods did fully insert.

Okay.

Any ESF actuations associated 10 12 13 with this?

Any We did have some ESF --

we had a

diesel generator start due to high drywell pressure which was caused by a loss of reactor

[inaudible) cooling because 14 we lost power to it.

15 16 power to it?

Okay.

Do you know why you lost 17

Yes, because of the lockout.

We had 18 a lockout on the Because of your generator lockout"..

20 That's correct.

Okay.

Did you lose power on 22 anything else?

23 We that was -- apparently

'n the 25 sequence of events, we lost a [inaudible) and was able to bring it back, but AN< RILEY E

ASSOCIATES, LTD.

Court Reporters 1250 I Street, N.W., Suite

00 washington, D.C.

2000".

Okay.

Wait.

All right.

Let me back up here a minute.

Okay.

4 You had -- you lost -- you had a

you lost a main generator.

Yes, we did.

Okay..

And as a result of that, of

course, you got a reactor scram.'h-huh.

10 Was your unit at 100 percent power?

12 Yes, it was.

Okay.

And is it currently stable in 13 Node 3?

14 16 17 Yes, it is currently stable.

Stable in, Mode 3?

In Mode 3.

Okay.

And you said you also lost 18 power to other things, which 19 Yeah.

We had --

we had a lockout on 20 21 22 the bus and we were able to -- that caused a temporary power H

loss to certain bus -- not -- certain non-vital buses that that weren't picked up by the DGs.

23 Okay.

So did all cf yo.:.: diesel 24 generators start?

I 5 Yes.

ANI! RILEY & ASSOCIATES, LTD.

Court Reporters 125C

Street.

N.W., Suite 300

.sh.not'nn, p c

?OAO",

Okay.

So your diesels

-- all I believe that to be true.

How many diesels do you have, sir?

Three.

So all three diesels started and loaded?

10 I do not know the answer to that.

Okay.

But your diesels started Uh-huh.

and I guess, you know, maybe you could call me back on whether or not they loaded 12 Yes.

13 when you get a chance.

14 Okay.

Did you have any ECCF injections, anything 16 abnormal with your reactor

[inaudible) on parameters or reactor scram?

17 18 19 We didn't have anything abnormal.

I don't think we'ad any injections into the system at this time.

20 Okay.

But your rods fully inserted?

That is correct.

22 Your diesels starte".

.-."e you on 83 natura'irc now?

Are vou using recirc pum"s?

We'e trying to get our -- I believe we gc= our recirc pumps back ANN 'RILEY

& ASSOCIATES, '"D, Court Reporters, 12SO 1 Street, N.W., Suite 300 li q iq~p r

~ ~

fl l'hhht

Okay.

But you did lose your recirc pumps when you lost your generator'?

That is coriect.

Okay.

Now, did you lose off-site power.

Or no?

No, we did not lose off-site power.

Not a loss of off-site power.

That is correct.

10 Okay.

And so just the loss of the 1

generator.

Were there any maintenance or surveillance activities going on at the time?

12 None at the time.

13 14 15 Okay.

So it just tripped, and at this time, you'e still investigating the cause?

That is correct.

We'e kind of like right in the middle of it right now.

17 Okay.

Now, do you have like an 18 19 auxiliary feedwater and a central feedwater

system, a..ything like that?

20 21 No, we do not.

Okay.

So I guess what's -- what'

.I 7 supplving water at this time?

What are you using for

=-.

23 water supple?

CRD 25 Okay.

So your cont.o'od dr

.e?

ANN RILEY e ASSOCIATES, LTD.

Court Reporters 1250 I Street.

N.w., Suite 300

rishi.naf on D <.

?0005

Control rod drive sistern and RCIC.

Okay.

Reactor core isolation cooling.

Okay.

So did RCIC automatically start I don' or was it a manual start?

10 I don't know the answer to that at this time.

But as I said, I was just --

we were all caught kind of unawares and I was kind of scrambling, getting other information.

[Inaudiblej 12 Okay.

13 14 elsewhere.

Okay.

But as far as flow to your 16

.17

core, you got PRD flow and you'e got RCIC providing water to your core right now?

That is correct.

Okay.

And then are you bypassing 19 20 steam in your condenser?

No, because we are isolated due to 21 7

the high drywell pressure.

A Okay.

So how are.;";. s=eaming?

Are you dump xng?

24 25

Yeah, we 'e dumping, Dumping to atmosphe'e?

ANi RILEY Ec ASSOCIATES, LTD.

Court Reporters 125l:

I Street, N.W., Suite 30<.

'eshinatnn, D.C

?000".

No.

No.

To To the suppression pool.

Dumping to the suppression pool.

Okay.

Okay.

Yeah.

Ne have no release at this t lme,.

Okay.

So there's no off-site 10 12 13 14 15 16 17 18 19 20 22 release ongoing?

That is correct.

Okay:

Dumping in the suppression pool.

Okay.

And you are trying at this time to get your recirc pumps back, correct?

That is correct.

Okay.

But they are -- so right now, you aren't -- well, you don't know if you'e in natural circ?

Right.

I'm kind of like -- I'm trying to look over everybody's shoulder right now and everybody's crowded in front of the panel; so I can't really see "hat's going on.

I understand.

Yea'."..

I

- - yeah.

23 Somebody is going to ask me that question, so 24 Uh-huh.

25 if you could f i."." ou=

ANN RILEY

& ASSOCIATES, LTD.

Court Reporters 1250 I Street, N.W., Suite 30".

Washington, D.C.

20005

I know.

I,understand.

Yeah.

If the diesel is loaded and whether or not RCIC automatically started, you know, if any other systems, you know, automatically started, Uh-huh.

and I guess, you know, if, you know, I -- if the recirc pumps tripped off, are they back.

I mean, are you in natural circ and then trying to get them back or are they back now.

10 12 Yeah.

I guess.

Hold on a second.

I may--

Sure.

14 be able to 15 Okay.

16 Have you been able to see what' 17 been, going on outside?

18 SPEAKER:

Outside

[inaudiblej.

Yeah.

Did -- did we ge-the recirc 20 pumps back?

21 22 23

[Inaudible]

Did the diesels loa"?

The diesels load [inaud.bl 24 What other auto-st-

= d.d we

',".a.e?

[Inaudible)

ANN RILEY & ASSOCIATES, LTD.

Court Reporters 1250 I Street, tJ.W., Suite 300

'."ashinaton, D.C.

200n~

10 Recirc pumps aren't back yet.

(Inaudible)

I apologize.

Okay.

It's kind of chaos right now.

I understand.

I unae~stand.

Yea I couldn't hear really the answers to those questions.

I guess you were just repeating the questions?

h Yes, I was just repeating the questions.

Right now, people are 10 Okay.

12 13 14 15 16 18 20

- People are finding out the answer while I stay on the phone.

Okay.

That's fine.

But as far as controls basically, as far as reactivity control. you'e subcritical and all of your rods fully inserted?

That is correct, all rods are fully inserted.

He are subcritical.

Okay.

And as far as vessel level control, you'e using your RCIC and your CRD?

That is correct.

21 Okay.

And then as "ar as pressure

\\ 3 control, right now, you'e Pressure control is SR%: that' 24 safety release valve 25 Safety release val...e.

kav.

.Nfl! RILEY 6

ASSOCI'TES, LT~.

Court Reporters 1250 I Street, N.W., Suite 300 v'ashington, D.C.

20005

0

suppression pool?

That's correct.

And your heat sink, you'e using a

That is correct.

Okay.

And then as far

[Inaudible)

Yeah.

Do you want me to get a

finaudible)?

Okay.

And as far as containment controls, you'e using 10 suppression pool cooling, correct?

That 'is correct.

12 pretty straightforward.

Okay.

Well, I mean, that sounds 14 Yeah.

Have you notified your resident 16 inspector at this time or--

17 He will be.

I haven't had a chance to notify him yet.

20 I understand.

I don't know if he has b en no:ified 21 23 yet Okay.

It's pretty auic'~

Yeah.

turnaround here.

o you plan to not fy like state,

'c=;-..

oth=

AN?v RILEY Ec ASSOCIATES, LTD.

Court Reporters 1250 I Street, tJ.W.,

Suite 30".

Washington, D,C.

20005

12 government

agencies, anything like. rhat?

agencies don' Not really.

The state and local Okay.

That' We haven't declared an emergency

[inaudible)

So Okay.

That's just a standard 10 12 question that we ask.

Some facilities do automatically and some don',

and so it's a standard question for us.

Recirc pumps did not trip?

They tripped.

They have not been restarted.

14 Okay.

Recirc pumps did trip; they have not been 15 restarred.

16 17 Okay.

So you are on natural circ?

That is correct.

Also diesels 18 auto-started, but they did not load.

19 Okay.

So they auto-started on the 20 loss of the generator.

23 No, they No, on rhe -- on the 'oss of 3

Hydro oil pressure 24.

On hydro oil pressu

• e.

'm sc ry.

A 5 And dad not load.

ANN RILEY & ASSOCIATES, LTD.

Court Reporters 1250 I Street, N.W., Suite 30r.

';;pshaw pr rap 9

I

>Apgt:

13 And did not load.

But are they still running at this time or have they since been secured?

Have they been

-- have the DGs been secured yet?

6 7

10 I know they'e (inaudible)

Our DIV 3 [inaudible) diesel has just been -- has been filled to be secured;

however, the other two are still running at this time.

~..Okay.

Okay.

I understand.

But none of the diesels loaded?

12 That is correct.

Okay.

And as far as --.did you find 13 out -- I need to put you on hold one moment,

please, s'r.

14 Okay.

Thanks.

16

[Pause.)

17 Sir?

1S 19 Yes, ma'm.

Sorry about that.

Here ':e've

"-ot 20 several lines going.

21 Okay.

<3 Anyway

[Inaudible] nuclear

.'ina '"ible:

Yeah.

But, okay, an" d=;;e k.-."w whether or not RCIC automatically started o if

= was a

.XK

."; I LEY c

ASSOC IA.ES, LTD.

ourt Reporters

'50 I Street, N,N.. Suite 300

, t"ashington, D.C, 2000~>

manual start?

Did RCIC auto-start or did we manually start it?

One second, please.

Thank you, sir.

[Inaudible).

It was a manual sta.t, RCIC.

A manual start.

Okay, 10 That is correct.

So there were no automatic actuations of any of your ECCS 12 13 14 That is correct.

equipment.

Okay.

So no ECCS discharges or -- into the vessel.

15 That is correct.

16 17 Okay.

Well, I think I have th

'nformation I need at this time.

Okay.

19 20 I guess let me just verify from your fax that -- it indicates here that there was nothing unusual or nc" understood.

That -- well "3

Other than the caus=-

Other than the caus=-

of the sc -am at AN! RILEY 8

ASSOCIATES, LTD Court Reporters l250 I Street.

N W., Suite 306

'ash.naton, D.(

2000~

of the main gene "ator

- - y ah.

Other than the cause of the main generator

=rip.

And that's under ii:.est'gation at this Dolilt Okay.

And did all systems function as required?

You indicated yes.

As a

in other words, the scram.

res 't of, you know, Right.

Everything did what it was supposed 10 to do.

12 13 15 16 That is correct.

Okay.

And I'm showing an event time of 0507; is that correct?

That's what it's showing on our alarm (inaudiblej for the main generator lc"kout, which is the f'rst indication that we had 17 Okay.

18 19 20 But yes.

And that's Pacific:'me.

correct?

That is Pacif ic tir.=.

21 Okay.

Could 'et a noti= =at

".-. n -.-er 23 and '." 'r name, please' Sure.

Ny name is Piv 1 as t AW::

".-, I LEY F~ ASSOCIATES, Court Reporters Street.

N.N., Suite 30!.

'ashxngton, D.C.

20005

16 different.

yeah.

It's a l.ttle kno~ what other Last name I do".'~

Okay.

How do you pronounce, 10 that?

12

'?

Okay.

13 Uh-huh.

15 Sounds good.

And event number will be 16 17 Yes, sir.

19 Okay.

Thank you very n;;:ch.

Thank you, sir.

I appreciate

=he 20 call.

21 22

".3

{ r.'he reupon, conc uded.i Bye-bye.

Bye-bye.

the telephone interview;;;;=

c.

~.SSOCI.-'.TES.

i TD Court R porters 1,.5C

Street, H.W., Suite 300

'ash;ngton.

D.C.

20005

UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION X

In the Matter of:

TELEPHONE INTERVIEW OF Case No.

(CLOSED)

X 10 U.S. Nuclear Regulatory Commission Two White Flint North 12 13 11545 Rockville Pike Rockville, MD 20852-2738 14 15 16 Wednesday, March 11, 1998 17 18 The above-entitled'atter came on for telephone interview, pursuant to notice, at 11:42 a.m.

20 BEFORE:

NRC OPERATION 22 23 ANN RILEY

& ASSOCIATES, LTD.

Court Reporters 1250 I Street, N.W., Suite 300 Washington, D.C.

20005

PROCEED I NGS

[ll:42 a.m. j NRC Operations Center.

This is a

[inaudiblej line.

Good evening.

This is calling from WNP2.

I have an event notification.

Okay. I'e got a notification at the time of 2342 Eastern.

2342 Eastern?

10 NRC:

Yes, ma'm.

And your name is, ma'm?

NRC:

last name is 13 as in 14 15 16 17 Thank you.

Okay.

And I'e sent you a fax on the event notification worksheet.

Have you received it?

18 19 Yes, ma'm.

I received one page.

Okay.

I only sent one page.

20 21 Okay.

I'l go ahead and read i-for the 22 recording.

23 25

.hat would be great, Do you want me to gc ahead and "ead all the information and [inaudible]

as well":

ANN RILEY

& ASSOCIATES, LTD.

Court Reporters 1250 'treet, N.W., Suite 300

'::ashington, D.C.

20005

Yes,'lease.

Okay.

Notification time, 2342 Eastern Standard Time.

The facility is WNP2, Unit 2.

My name is The callback is the ENS line or 5093772278.

10 12 13 14 15 16 17 18 20 The event time and zone was 5:16 a.m. Pacific Standard Time on March 11th, 1998.

The power and mode before the event was 100 percent, Mode 1.

Power after was zero percent, Mode 3.

This is a 50/72 non-emergency classification.

Although this is actually supplemental and corrected information, I have checked the ECCS discharge to RCS under the one-hour non-emergency notification Uh-huh.

and under four-hour, I have RPS actuation and ESF actuation.

Okay.

Okay.

I'l go ahead I notice the event time is different from what was initially reported also.

5:16 a.m.,

was not the same time?

21 22 23 No.

What was reported was 5:0:.

5:07.

I believe our records no':

indicate 5:16.

There may have been some confusion before.

24 This is the correct time, 5:16.

25

~Okay.

That's fine.

That's fine.

ANN RILEY S

ASSOCIATES, LTD.

Court Reporters 1250 I Street, N.W., Suite 300 Washington, D.C.

20005

I'l use that as a correction.

Okay.

.Thank you.

I'l go ahead and read the description information, then.

10 12 Okay.-

Please.

This report provides supplemental a'nd corrected information to the ENS notification made by NNP2 on March 11th, 1998 pursuant to the requirement of 10 CFR 50.72, BRAVO 2-2, and 50.72 BRAVO 1-4.

At 5:16 a.m.

on March 11th, HNP2 experienced a

plant transient and scram due to the following sequence of events:

13 The initiating event was a containment instrument 14 15

error, which is CIE, system leak inside the drywell which caused closure of a single MSIV.

Due to the resulting void 16 17 1S 20 21 22

collapse, the reactor scrammed on high neutron flux and the remaining MSIVs isolated due to high steamline flow at 140-percent.

Reactor pressure immediately peaked at 1,085 pounds.

Vessel level decreased to level 2, which is minus 50 inches, causing initiation and injection of the RCIC and HPCUS systems and tripping of the RCC pumps which provide 23 25 cooling to the drywell atmosphere.

Is RCC reactor col" That's corre'ct.

"o ng water?

ANN RILEY & ASSOCIATES, LTD.

Court Reporters 1250 I Street, N.W., Suite 300 Nashington, D.C.

20005

Okay.

Thank you.

Uh-huh.

10 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Within the next 60 seconds, reactor level recovered to approximately level 8,

which is plus 54 inches, causing the RCIC steam supply valve and HpCUS injection valve to automatically close, thus terminating the injection.

RCIC was subsequently manually restarted for level control and pressure control was accomplished by intermittent manual main steam release valve openings.

Approximately eleven minutes into the event, drywell pressure peaked at approximately 1.60 pounds and then began to decrease because drywell cooling had been reestablished and venting.to the standby gas treatment head started.

A drywell pressure peak of approximately 1.6 pounds was sufficient to satisfy ECCS logic which auto-started the Division 1 and Division 2 emergency

diesels, and also sufficient for partial makeup of'low pressure ECCS pump start logic.

Due to the close proximity of the actual drywell pressure achieved during this event and the ECCS pump start logic at 1.55 pounds, some elements of the ow pressu"e ECCS pump start logic remained unsatisfied because actual drvwell pressure did not reach E16 -- excuse me --

.6.- pound set Mt.I RI LEY 8( ASSOCIATES, LTD.

Court Reporters 1250 I Street, N.N., Suite 30C':washington.

D.C 20005

point, and therefore, no low p'ressure ECCS pump logic was satisfied during the event.

Okay.

So they would not have been required to start since the logic was not met?

That's correct.

Okay.

Okay.

I see down here you have notified your resident inspector?

That's correct.

10 And also issued a press release?

That's right.

Okay.

Would it be possible to get a

12 13 14 15 16 17 19 20 21 22 23 25 copy of the press release?

Is that something you have access to?

I can follow up on that.

I don' have access to that, but I can leave that as. a turnover item for tomorrow day.

Yeah.

That just might be nice, that we -- maybe we could pass it along to our public affa'rs folks so that, you know, everybody is talking from the same story.

Okay.

Copy of the press release.

Yeah.

And how would I communicate that to you?

Would I fax it?

Same fax.

ANN RILEY Ec ASSOCIATES,,

LTD.

Court Reporters 1250 I Street, N.W., Suite 300 Washington, D.C.

20005

M

Use the same line?

Yeah, on that -- the 5151 fax number.

Uh-huh.

Okay.

And it's not a [inaudiblej thing, it's not a'equirement or anything like that.

Sure.

It's just -- that would be helpful is all.

10 Sure.

. If we have it, I'l go ahead and forward that to you.

12 13 Okay.

Shall I put "Attention:

on it?

15 It -- uh Or no?

17 That would be fine.

Okay.

19 That would be fine.

20 And I guess I noticed down here you said all 21 22 systems functioned as required and there was not anyth'ng that as unusual or not understood.

23 That's correct.,Upo.".

fu ther investigation, that is our 25 Okay.

AN!! RILEY 6 ASSOCIATES, LTD.

Court Reporters 125" I Street, N.W., Suite 30C "ashington, D.C.

20005

conclusion, yes.

Yeah, as a result of that information.

And is it correct that you'e currently in Mode 4?

That's right.

Okay.

Are you going cold or are you going to stay in Node 4 or what's the plan?

Node 4 is cold shutdown.

We are going to stay in Mode 4.

Our current estimations for 10

startup, right now, we'e putting out unknown, but it looks like we'e moving towards a startup tomorrow or this weekend.

13 Okay.

14 15 That'.

of course -- you know, our estimated restart date officially is unknown.

16 17 18 I understand.

I understand.

Sure.

I'm just trying to get an idea if it 19 20 was going to be, you know, a few days or a month, Uh-huh.

23 That kind of a thing.

We'e hoping.

Okay.

I understand.

Okay.

I understand.

Wel'c.recrate the Alii) RILEY R ASSOCIATES, L. D.

Court Reporters 1250 I Street, N.W., Suite 300 washington, D.C.

20005

updated information and, you know, the fax is definitely

helpful, and I can't think of anything else to ask.

I might

--'I'm relieving someone else and he was listening.

I had you on the speakerphone here.

~:

Okay, can you think of anything to add?

No.

10 12 Okay.

I think we have pretty much got it covered, unless you can think of anything you need to

add, ma'm.

No, I don't have anything else to add.

If you do think of something a little bit later, that 14 15 number at the top is the number.

number, the 16 Okay.

17

~ :

You can just go ahead and give us a

18 buzz back.

19 Will do.

20 21 Okay.

Well, again, I appreciate the update 22 23 and the cl-='fication and I'l make sure ir abets out omor ow mo ning.

25 Thank you, Thank you ANN R I L2Y E

ASSOC IATES, LTD

'ourt Reporters

'?5" l Street, NW'., Suite 300

'::=:s';.. nat ~n p 6',">An~.

10 Bye-bye.

Good day, ma'm.

[End of call.]

[Whereupon, the telephone interview::as concluded.]

10 12 13 14 16 17 19 20 "3

25 ANN R I Lr,Y

& ASSOCEATES, Court Reporters 1250

'. St rect, N W.,

Su' e

'.~)0

'r.'ash langton, D. C.

2000'.

"Oc) 8'"-00"'

t r

UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION In the Matter of:

TELEPHONE INTERVIEW OF Case No.

(CLOSED)

X 10 12 13 15 U. S. Nuclear Regulatory Commission Two White Flint North 11545 Rockville Pike Rockville, MD 20852-2738 16 17 18 19 20 Wednesday, March 11, 1998 J

The above-entitled matter came on for telephone interview, pursuant to notice, at 12:28 p.m.

21 BEFORE:

22 NRC OPERATION 23 24 25 ANN RILEY Ec ASSOCIATES, LTD.

Court Reporters 1250 I Street, N.W., Suite 300 Washington, D.C.

20005

PROCEEDXNGS help you?

[12:28 p.m.]

NRC.

This is [inaudible].

May I Yes. This is 12:28.

[inaudible] at WNP2 making a four-hour report.

Okay.

Logging you in, sir, at

,9, I understand 12:28 Eastern Standard 10 Time.

WNP2, correct?

That is correct.

13 14 please?

And tell me your name again, 16 17

[Pause.]

Hold on a minute, please.

18 19 20 your trip?

Does this have anything to do with Yes.

Yes.

This is a follow-up to 21 22 23 24 25 some events that happened after we took the scram.

All right.

Go ahead, please.

Okay.

We 'e making a 0531.

We had an ESP actuation, an actual automation start of the HPCUS

pump, but it did not inject.

ANN RILEY 6 ASSOClATES, LTD.

Court Reporters 1250 I Street, N.W., Suite 300 Washington, D.C.

20005 (202) 842-0034

written up, sir?

First of all, do you have this Yes.

Can you fax to me when we'e done?

Yes.

When we'e all done, I can give you the fax, that's correct.

auto-started?

All right.

So the HPCUS pump 10 That's correct.

Why?

It started on high drywell pressure.

12 13 All right.

And then also we have -- we had a

14 second reactor scram due to RPV low level.

Auto?

Auto reactor scram?

16 That's correct.

17 18 19

[Inaudible]

say again?

Reactor pressure vessel low level.

How low did it get?

Or what is low 20 21 level on your plant?

The low level scram is 13 inches.

22 What's normal?

23 Normal is about 36 to.37 inches.

24 What's low low?

25 Let me see if we'e got a good number ANN RILEY Ec ASSOCIATES, LTD.

Court Reporters 1250 I Street, N.W., Suite 300 Washington, D.C.,20005

(?0?,l 4?-OA34

j'

for actually how far it went.

All right.

[Inaudible]

how low RPV level got?

Minus 50 inches.

~..Approximately minus 50 inches was the lowest we got.

Minus five-zero?

10 That's correct.

What's your low low level setting?

We have various settings as we go down that different actuations happen.

Well, what's your next setting 14 15 16 17 18 after low going down?

Do you have a -- is that what you call low low or what?

Well, we just have levels, like level 8, level 3, that kind of thing.

Thirteen inches was where we had the scram and then the next level below that that actually would actuate anything -- let me check here for a 19 second.

20

[Inaudible conversation.)

[Inaudible)

RPV level?

22 Okay.

Thirteen inches

[inaudible) 23 24 25

Well, he wants to know what kind of actuations we have there, you know, for levels, because that was like your low, and then he wants what's low low, low low ANN RILEY 6 ASSOCIATES, LTD.

Court Reporters 1250 I Street, N.W., Suite 300 Washington, D.C.

20005

/QA71 Ad~-AA~d

[Inaudible]

Right.

Then the next one down from there is minus 1.9.

10 12 13 Right.

And that's all the rest of

[Inaudible]

Right.

[Inaudible]

Okay.

and the RHR.

~..Okay.

[Inaudible].

We never got that problem.

Okay.

So the next trip down would have been thE minus 50 inches, and that would have been a

14 15 17 18 20 21 22 23 HPCUS and RCIC start, which we already were running RCIC at the time.

And then the next level below that was minus 129

inches, and we did not come close to that.

What [inaudible] reactor fuel?

The [inaudible] reactor fuel is 210 inches.

Okay.

I'm just, trying to get a

feel, because each plant is different.

Yep.

I understand.

What's zero?

24 What's zero inches in the core?

25 Yeah.

ANN,RILEY & ASSOCIATES, LTD.

Court Reporters 1250 I Street, N.W., Suite 300 Washington, D.C.

20005 i>n~s one nne~

10 12 13 I don't -- that doesn't correspond to anything as far as -- you know, obviously not [inaudible}

fuel.

That's just a reference level.

Now, I don't know where it actually corresponds to a particular component within the vessel itself.

Okay.

See, at some plants, minus 50, people would go nuts.

Yeah.

No.

See, actually what happened was this was normal because we were cooling down.

Yeah.

You know, we took the scram, we were cooling down, and so we had lower level, but we were in our ELPs.

We already had a low-level condition to begin with.

14 Yeah.

K And when they reset the scram, that 16 17 18 19 20 21 was just a scram signal that was in that came back and scrammed them out off of the low level.

So we were dealing with the condition through the ELPs.

It was, you know, because

-- due to the coo3,down and associated stuff like that with the scram, level was low to begin with.

Okay.

Tell me again how low it 22 23 got?

The lowest that we'e estimating 24 right now is minus 50 inches.

25 Which is the set point for HPCUS ANN RILEY 6 ASSOCIATES, LTD.

Court Reporters 1250 I Street, N.W., Suite 300 Washington, D.C.

20005

and RCIC?

That's correct, of which RCIC was already running at the time.

I understand.

And this is during cooldown?

Well, this is during -- this was during the transient that happened after the reactor scram.

That would be more appropriate.

Where is the level now?

10 The level right now is approximately 12 13 14 15 16 17 18 19 20 21 22 23 24 SPEAKER:

We'e raising level 60 to 80 inches

[inaudible].

Okay.

We'e raising our level right now up to 60 to 80 inches.

We don't have any recirc pumps right now, so our ARPs require us to go to 60 to 80 inches.

So the point is you have recovered reactor vessel water level to That's correct, yes.

We are able to main reactor vessel water level, that is correct.

Reactor vessel water level has been restored to its normal level?

That's correct.

All right.

Let me -- I just started to read this and I didn' ANN RILEY & ASSOCIATES, LTD.

Court Reporters 1250 I Street, N.W., Suite 300 Washington, D.C.

20005

(?021 842-0c)~4

t t

get through it here.

Let me just kind of read out loud with you.

10 Okay.

No problem.

Water is being supplied to reactor vessel by the control rod drives and reactor core isolation cooling system, and steam is being dumped to the suppression pool.

The unit is currently in natural circulation and the licensee is in the process of trying to restore the recirc pump.

Division 3 high pressure core spray diesel has been secured and the remaining two emergency diesel generators 12 13 are still running and have remained unloaded.

Have you got your recirc pumps back?

No, we have not.

We'e still in the 14 process of trying to get those back.

15 Are you still on natural 16 circulation?

17 18

Yes, we are.

Is that functioning satisfactorily?

19 Yes, it is.

20 21 22 What's the problem?

You just can' get them started or what?

We have our reactor ~ater cleanup 23 24 system isolated, and right now, we have a delta P that has to be met prior to starting,.the recirc pumps.

25 Okay.

ANN RILEY E

ASSOCIATES, LTD.

Court Reporters 1250 I Street, N.W., Suite 300 Washington, D.C.

20005 i~n~>

a nate~

l~

And so we haven't been able to meet that.

All right.

So your -- your initial conditions for starting those pumps are a problem?

That's correct.

All ri'ght.

Anything else?

Not at this time.

That's all we had

,to report, was HPCUS pump start and the second reactor scram.

10 Is your plant stable?

12 13 Yes, it is.

You'e in what mode right now?

Mode 3.

Stable in Mode 3.

15 That's correct.

16 What are your plans?

17 18 20 21 22 23 24 25 Right now, our plans are to -- we'e looking at doing -- working up some outage type work, we might be doing a little bit of work, and also we'e going to investigate the trip and narrow down exactly what caused the reactor scram and get that fixed.

That's what I was going to ask you.'o you have any feel at all for what the root cause was or what the initiating event was yet?

I know it's early, but I just wondered how you'e coming on that.

ANN RILEY

& ASSOC IATES, LTD.

Court Reporters 1250 I Street, N.W., Suite 300 Washington, D.C.

20005 I'7A'7l A4'l AA34

10 We'e getting close, but it doesn' look like yet we'e got it narrowed down to exactly what the cause is yet.

All right.

All right.

Some normal questions we ask here.

Was there anything unusual or not understood that happened along with this other than what we talked about?

10 12 13 14 15 16 17 18 19 20 21 22 Did all systems function as required other than what we talked about?

~..We have -- one of our RCIC valves failed to fully open, which required us to have to operate RCIC in a little bit different manner.

But it still functioned properly.

Did any other safety-related equipment not work properly that you discovered so far?

No, not at this time.

All right.

Let me verify the spelling of your last name.

That's correct.

All right.

And what about your resident?

Has he been told about this latest information?

23 He's going to be updated.

He has 25 been up here in the control room most of the morning.

The exact report here, I don' ANN RILEY 6 ASSOCIATES, LTD.

Court Reporters 1250 I Street, N.W., Suite 300 Washington, D.C.

20005 (202>

P42 PP34

Okay.

know for sure.

All right.

I'm going to put this in as an update to the earlier event, number Okay.

lt

?

And your name is?

10 The last three letters are 12 13 15 16 If you'l go ahead and fax that to me, I would appreciate it.

I understand you'd like the fax.

Okay?

All right.

Thank you.

18 All right, Thanks for the 19 call 20 22 Bye.

[Whereupon, the telephone interview was concl'ed.)

'24 25 ANN RILEY

&. ASSOCIATES, LTD.

Court Reporters 1250 I Street, N.W., Suite 300 Washington, D.C.

20005 (202) 842-0034

Mr. J. V. Parrish Mr. Rodney L. Webring (Mail Drop PE08)

Vice President, Operations Support/PIO Washington Public Power Supply System P..O. Box 968 Richland, Washington 99352-0968 Mr. Greg O. Smith (Mail Drop 927M)

WNP-2 Plant General Manager Washington Public Power Supply System P.O. Box 968 Richland, Washington 99352-0968 Mr. D. W. Coleman (Mail Drop PE20)

Manager, Regulatory Affairs Washington Public Power Supply System P.O. Box 968 Richland, Washington 99352-0968 Mr. Albert E. Mouncer (Mail Drop 396)

Chief Counsel Washington Public Power Supply System P.O. Box 968 Richland, Washington 99352-0968 Mr. Paul Inserra (Mail Drop PE20)

Manager, Licensing Washington Public Power Supply System P.O. Box 968 Richland, Washington 99352-0968 Perry D. Robinson, Esq.

Winston 8 Strawn 1400 L Street, N.W.

Washington, D.C. 20005-3502