ML16342D160

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Forwards Insp Repts 50-275/95-17 & 50-323/95-17 on 951021- 951208.No Violations Noted
ML16342D160
Person / Time
Site: Diablo Canyon  Pacific Gas & Electric icon.png
Issue date: 12/29/1995
From: Dyer J
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
To: Rueger G
PACIFIC GAS & ELECTRIC CO.
Shared Package
ML16342D161 List:
References
NUDOCS 9601040217
Download: ML16342D160 (12)


See also: IR 05000275/1995017

Text

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UNITED STATES

NUCLEAR REGULATORY COMMISSION

REGION IV

611 RYAN PLAZA DRIVE, SUITE 400

ARLINGTON,TEXAS 76011 8064

OEC 29 l995

EA 95-279

Pacific

Gas

and Electric Company

Nuclear

Power Generation,

B14A

ATTN:

Gregory

M. Rueger,

Senior Vice

President

and General

Manager

Nuclear

Power Generation

Bus. Unit

77 Beale Street,

Room

1451

P.O.

Box 770000

San Francisco,

California

94177

SUBJECT:

NRC

INSPECTION

REPORT 50-275/95-17;

50-323/95-17

This refers to the special

inspection

conducted

by Mr. Dyle Acker,

and others,

of this office on October 21-27

and

November

13-17,

1995,

and in-office review

of documents

through

December

8,

1995, of the Diablo Canyon Nuclear

Power

Plant, Units

1

and

2 facility, to understand

the events

surrounding

the

October

21,

1995, explosion of Unit Auxiliary Transformer

1-1

and the

subsequent

loss of offsite power.

The purpose of the inspection

was to

determine whether activities authorized

by the licenses

were conducted

safely

and in accordance

with NRC requirements.

At the conclusion of the inspection,

the findings were discussed

with you and those

members of your staff

identified in the enclosed

reports

Areas

examined during the inspection

are identified in the report.

Within

these

areas,

the inspection consisted

of selective

examinations

of procedures

and representative

records,

interviews with personnel,

and observation of

activities in progress.

Based

on the results of this inspection,

two apparent violations were

identified and are being considered

for escalated

enforcement

action in

accordance

with the "General

Statement

of Policy and Procedure

for NRC

Enforcement Actions" (Enforcement Policy),

(60 FR 34381;

June

30,

1995).

The

enclosed

report identifies six examples of an apparent violation of Technical Specification 6.8.1 for procedure

adherence

requirements

and

one example of an

apparent violation of Technical Specification 6.2.2.f of overtime

requirements.

We are concerned

because

these

apparent violations appeared

to

directly contribute to your energizing

the

12

kV bus with a ground

buggy

installed,

causing

the transformer explosion

and resultant

challenges

to plant

safety

systems.

A predecisional

enforcement

conference

to discuss

these

apparent violations

has

been

scheduled

for January

12,

1996.

The decision to hold

a predecisional

enforcement

conference

does not mean that the

NRC has

de'termined that

a

violation has occurred or that enforcement

action will be taken.

Accordingly,

no Notice of Violation is presently

being issued for these

inspection

'760i0402i7 95i229

PDR

ADOCK 05000275

6

PDR

Pacific

Gas

and Electric Company

findings.

In addition,

please

be advised that the

number

and characterization

of apparent violations described

in the enclosed

inspection report

may change

as'

result of further

NRC review.

The conference

is being held to obtain

inFormation to enable

the

NRC to make

an enforcement

decision,

such

as

a

common understanding

of the facts,

root causes,

missed opportunities

to

identify the apparent

violations sooner,

corrective actions,

significance of

the issues,

and the

need for lasting

and effective corrective action.

In

particular,

we expect

you to address:

(1) other instances

in which ground

buggy work was improperly controlled or performed,

including the October

1994

event which involved

a ground buggy left installed during emergency diesel

generator testing,

and (2) the influence of your outage

overtime practices

on

the October

21,

1995,

event.

In addition, this is

an opportunity for you to

point out any errors

in our inspection report

and for you to provide any

information concerning your perspectives

on:

(1) the severity of the

violations,

(2) the application of the factors that the

NRC considers

when it

determines

the amount of a civil penalty that

may be assessed

in accordance

with Section VI.B.2 of the Enforcement Policy,

and

(3)

any other application

of the Enforcement

Policy to this case,

including the exercise of discretion

in accordance

with Section VII.

You will be advised

by separate

correspondence

of the results of our

deliberations

on this matter.

No response

regarding

these

apparent violations

is required at this time.

In accordance

with 10 CFR 2.790 of the

NRC's "Rules of Practice,"

a copy of

this letter and its enclosure will be placed in the

NRC Public Document

Room.

Sincerely,

%f

e'.

E. Dyer, Director

Division of Reactor Projects

Dockets:

50-275

50-323

Licenses:

DPR-80

DPR-82

Enclosure:

NRC Inspection

Report

50-275/95-17;

50-323/95-17

Pacific

Gas

and Electric Company

-3-

cc w/enclosure:

Sierra Club California

ATTN:

Dr. Richard

Ferguson

Energy Chair

1100 lith Street,

Suite

311

Sacramento,

California

95814

San Luis Obispo

Mothers for Peace

ATTN:

Ms. Nancy Culver

P.O.

Box 164

Pismo

Beach, California

93448

Ms. Jacquelyn

C. Wheeler

P.O.

Box 164

Pismo

Beach, California

93448

The County Telegram Tribune

ATTN:

Managing Editor

1321 Johnson

Avenue

P.O.

Box 112

San Luis Obispo, California

93406

San Luis Obispo County Board of

Supervisors

ATTN:

Chairman

Room 370

County Government

Center

San Luis Obispo, California

93408

California Public Utilities Commission

ATTN:

Mr. Truman Burns)Mr. Robert Kinosian

505

Van Ness,

Rm.

4102

San Francisco,

California

94102

Diablo Canyon

Independent

Safety Committee

Attn:

Robert

R. Wellington,

Esq.

Legal

Counsel

857

Cass Street,

Suite

D

Monterey, California

93940

Radiologic Health Branch

State

Department of Health Services

ATTN:

Mr. Steve

Hsu

P.O.

Box 942732

Sacramento,

California

94234

0

Pacific

Gas

and Electric Company

State of California

ATTN:

Nr. Peter

H. Kaufman

Deputy Attorney General

110 West

A Street,

Suite

700

San Diego, California

92101

Pacific

Gas

and Electric Company

ATTN:

Christopher J.

Warner,

Esq.

P.O.

Box 7442

San Francisco,

California

94120

Diablo Canyon Nuclear

Power Plant

ATTN:

Warren

H. Fujimoto, Vice President

and Plant Manager

P.O.

Box 56

Avila Beach, California

93424

Pacific

Gas

and Electric Company

OEC 29 l995

E-Mail report to D. Nelson

(DJN)

E-Mail report to

NRR Event Tracking System

(IPAS)

bcc to

DNB (IE01) <$+

bcc distrib.

by RIV:

L. J. Callan

DRS-FIPB

Branch Chief (DRP/E,

WCFO)

RIV File

Leah Tremper

(OC/LFDCB,

MS:

TWFN 9E10)

G.

F.

Sanborn

W. L. Brown

Resident

Inspector

MIS System

Sr Project Inspector

(DRP/E,

WCFO)

Branch Chief (DRP/TSS)

M.

Hammond

(PAO,

WCFO)

G.

M. Vasquez

J.

Lieberman,

OE,

MS: 7-H-5

OE

EA File,

MS: 7-H-5

DOCUMENT NAME:

R:tt DC)DC517RP.DGA

To receive copy of document, indicete in box: "C" ~ Copy without enclosures

"E" ~ Copy with enclosures

"N

a No copy

RIV:DRP/E

C:DRP/E

D:WCFO

D:DRP

GAcker

9 ~

Won

KEPe

ins

JEDyer ~

12/Zg/95

12/29/95 ~

/

/95

12/zg/95

040008

Pacific

Gas

and Electric Company

-5-

OEC 29 l995

E-Mail report to D. Nelson

(DJN)

E-Mail report to

NRR Event Tracking System

( IPAS)

bcc to

DMB ( IE01)

bcc distrib.

by RIV:

L. J. Callan

DRS-FIPB

Branch Chief (DRP/E,

WCFO)

RIV File

Leah Tremper

(OC/LFDCB,

MS:

TWFN 9E10)

G.

F. Sanborn

W. L. Brown

Resident

Inspector

MIS System

Sr Project Inspector

(DRP/E,

WCFO)

Branch Chief (DRP/TSS)

M.

Hammond

(PAO,

WCFO)

G.

M. Vasquez

J.

Lieberman,

OE,

MS: 7-H-5

OE

EA File,

MS: 7-H-5

DOCUMENT NAME:

R:i DC'jtDC517RP.DGA

Tc receive copy cf document, indicete in box: "C" e Copy without enclosures

"E" ~ Copy with enclosures "N" ~ No copy

RIV:DRP/E

C:DRP/E

D:WCFO

D:DRP

GAcker

12/S9/95

KEPe

sns

Won

12/zg/95 ~

/

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JEDyer ~

12/zg/95

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