ML20209J449

Forwards Design Baseline & Verification Program (Dbvp) Insp Repts 50-327/86-55 & 50-328/86-55 on 861103-07 & 1117-21 & 1201-04.DBVP Being Conducted Per Program Plan.Listed Deficiencies Noted

ML20209J449
Person / Time
Site:	Sequoyah
Issue date:	02/03/1987
From:	Taylor J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE)
To:	White S TENNESSEE VALLEY AUTHORITY
Shared Package
ML20209J455	List: IR 05000327/1986055 ML20209J449
References
NUDOCS 8702060313
Download: ML20209J449 (6)

See also: IR 05000327/1986055

Text

- . - - _ - - _ _ _ _ - _ _

UNITED STATES

/  %,, ~'

NUCLEARWASHINGTON,

REGULATORY COMMISSION

P' o

g

D. C. 20066

g

• %,.....J m . , m,

Mr. S. A. White

Manager of Nuclear Power

Tennessee Valley Authority

6N, 38A 1.ookout Place

1101 Market Street

Chattanooga, TN 37402-2801

Gentlemen:

SUBJECT: REPORT NOS. 50-327/86-55 AND 50-328/86-55

1-4, 1986, the NRC staff conducted a

On November 3-7 and 17-21, and December

specialinspectionofTVA'sDesignBaselineandVerificationProgram(DBVP)fThe NRC inspection was

the Sequoyah Nuclear Power Plant at the plant site.

comprised of a multi-discipline team of personnel from theconcentrated

The team Office of Inspecti

and Enforcement, consultants, and the Region II Office.

nn the engineering change notices evaluated in the

oversight of this program by TVA's Engineering Assurance group.

As a result of the inspection, the NRC team concluded that the DBVP

conducted in accordance with the program plan.

project and Engineering Assurance groups appears to be adequate ir most

instances sanpled by the inspection team within the scope of the progran

areas inspected to date. Deficiencies have been noted, however.

Most significant

Results of the inspection are presented in the enclosure.

among the inspection team's observations regarding TVA's modification process,

which had not been identified by DVBP or EA efforts, are the following:

Instances of inadeounte drawing control, such as use of a Unit 1 piping

(1) isometric for a Unit 2 alternate piping analysis of a nitrogen system

containment isolation valve configuration.

Instances of unconservative, missing or erronenus calculations, such es

(2) an unconservative calculation to qualify a containment penetration test

line and incorrect analytical seismic qualification of a solenoid valve

87020bO313 870203

gDR ADOCK 05000327

PDR

-2- NB G $ # ,

Mr. S. A. White ,

The NRC is

which operates a nitrogen system containment isola

components may be incorrect and incomplete.

(3) Instances in which the Division of Nuclear Engine

Operations did not establish surveillance tests required to meet =some

test criteria.

(4)

An instance of a potential timing sequence problem in the d$sel '

starting Ingic between load shedding and output breaker cicsure.

Instances of the DBVP project taking credit for the work of ot'ner TVA

(5) programs for resolution of selected technical attributes without con- ,

firming that such attributes were properly addressed in thd other  ;.

programs.

-

Regarding these items, the team noted that the DBV

Based on comments developed by the DBVP project for

modification tests.

particular ECNs and other observations made by the team, the tec

catinn of test requirenents and test acceptance criteria between Engineer- enginee

and plant operations personnel has not been sufficiently effective.

ing has not documented its understanding of the required scope o

tion tests, and Operations has not demonstrated its awareness of certain ,,

periodic test and surveillance requirenents.

We note that the DBVP is limited with respect to reviewing the technical

adequacy of calculations and that a separate calculation review program

The TVA caleplation review program, including a

being conducted by TVA.

discussion of its interface withTVA thesubmitted

DBVP,awas presented

written descriptionto

of the

the NRC a

neeting held on December 15, 1986. 70,1987 (Gridley to

calculation review prngram in a letter dated JanuaryOne aspect We of

Youngblood). adequacy of calculations within all nuclear engineering div

intend to conduct an inspection of the calculational review program.

A written response isThe requested from TVA addressing the cbservation

NPC intends to follow your acticut.to resolve

in the enclosed repnrt.

these items, therefore your response should be providedThesufficiently in a

of planned restart of Sequoyah Unit 2 to allow for NRC inspection.

findings addressed in the enclosure were discussed by the team in a me

with TVA management at the conclusion of the inspection on December 4

In accordance with 10 CFR 2.790(a), a copy of this letter and the en

be placed in the NRC Public Document Room. .

^.a7 + t

l ' ' '

, , .

'

D$s'tribution(w/ enc 1)

'

'bCS '

'

PDR

LPDR

DQAVT Reading

- '

QAB Reading

> RArchitzel, IE

LSpessard, IE

. EVImbro, IE

HJMiller, IE

BKGrimes, IE

,

"

JMTaylor, IE

'

~.'Otcr ;t:: M , IE

. HRDenton, NRR

': ,

i GZech,'RII

's '

< #

KBarr, RII

4

\' ~ BDHayes, 01

SRCinnelly, OIA

ELJordan, IE

.T(oungblood, NRR

HThompson, NRR

'

,

DMu11er, NRR

In,pection Team (8)

JHolonich, NRR

Resident Inspector

.NSIC

'

Regional Administrator, RII

WCline, RII

'

CRStahle, NRR

js . TMNovak, NRR

..

NTIS

ELD

OGC

',. \

, O

'

'*

,v, s

{ a

W D

IE:DQAVT:QAB IE:0QAVT:QAB AVT:DD AV . D

REAR #itzel EVImbro NJMiller s

,{, ,

'

01($/87 01//$/87 0 g87 1/jo/87

. $

{ :D DD I.

t

,

R pessard RSt stecki JMT r

-

0//b/87 01/ 87

0Q, 87

&

P

, . . - - - - - , , . - . , - - . . , . - - - - . . , , - - - , . . . , ,

, ,-,-------.-----,-,.,.------,n- ,- , , - - ----,,--c. --- - - - .

__ .

.

-3- FEB 6 3 EMU

Mr. S. A. White

Should you have any questions concerning this inspection, please contact me or

Mr. Gene Imbro ((301) 492-9671) of this office.

Sincerely,

/

4 ames M. Taylo

/

Director

ffice of Ins ction and Enforcement

Enclosure:

Inspection Report 50-327/86-55

and 50-328/86-55

cc w/ enc 1: See next page

i

i

.. -. . - . . -, . . - . . , - . - . . . -

. -. . - . - . - . - _ - - . . . . - , . - - _ . . - . . . - . - _ - . - - - - - - - -

,

FEB 0 3 EID

Distribution (w/ encl)

DCS

PDR

LPDR

DQAVT Reading

QAB Reading

RArchitzel, IE

LSpessard, IE

EVImbro, IE

HJMiller, IE

BKGrimes, IE

JMTaylor, IE

'"Ztrut :M , !E

HRDenton, NRR

GZech, RII

KBarr, RII

BBHayes, 01

SRConnelly, 0IA

ELJordan, IE

JYoungblood, NRR

HThompson, NRR

DMuller, NRR

Inspection Team (8)

JHolonich, NRR

Resident Inspector

NSIC

Regional Administrator, RII

WCline, RII

CRStahle, NRR

TMNovak, NRR

NTIS

ELD

OGC

d @

IE:DQAVT:QAB IE:DQAVT:QAB . QAVT:DD A .0

REAR #itzel EVImbro NJMiller e~ s

01gp/87 01/,f3/87 01 g87 1/jo/87

$ 1

. :D DD I

R pessard RSt stecki JMT. Nr

07/2487 01/ 87 Og 87

2<

.

- -,:

, . . , . - . . , _ . . , , , . . . . . .,,m2,..

FEB o 3 Me7

cc w/ encl:

Tennessee Department of Public Regional Administrator, Region II

U.S. Nuclear Regulatory Commission,

Health 101 Marietta Street, N.W., Suite 2900

ATTN: Director, Bureau of Atlanta, Georgia 30323

Environmental Health Services

Cordell Hull Building

Nashville, Tennessee 37219

J. A. Kirkebo Mr. Michael H. Mobley, Director

ATTN: D.L. Williams Division of Radiological Health

Tennessee Valley Authority T.E.R.R.A. Building

400 West Summit Hill Drive, W12 A12

Knoxville, Tennessee 37902 150 9th Avenue North

Nashville, Tennessee 37203

Mr. Bob Faas County Judge

Westinghouse Electric Corp. Hamilton County Courthouse

P.O. Box 355 Chattanooga, Tennessee 37402

Pittsburgh, Pennsylvania 15230

R. L. Gridley

Tennessee Valley Authority

SN 157B Lookout Place

Chattanooga, Tennessee 37402-2801

M. R. Harding

Tennessee Valley Authority

Sequoyah Nuclear Plant

P.O. Box 2000

Soddy Daisy, Tennessee 37379

Resident Inspector /Sequoyah NPS

c/o U.S. Nuclear Regulatory Commission

2600 Igou Ferry Road

Soddy Daisy, Tennessee 37379

H. L. Abercrombie

Tennessee Valley Authority

Sequoyah Nuclear Plant

P.O. Box 2000

Soddy Daisy, Tennessee 37379

l

l

l

}

.

I

=

. -

, . , -