ML16343A442

From kanterella
Jump to navigation Jump to search
Forwards Insp Repts 50-275/96-16 & 50-323/96-16 on 960707-0817 & Nov.One Violation Identified Re Failure to Perform Prompt Operability Assessment Identification of Degraded Condition & Circuitry Specified by Design
ML16343A442
Person / Time
Site: Diablo Canyon  Pacific Gas & Electric icon.png
Issue date: 09/12/1996
From: Dyer J
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
To: Rueger G
PACIFIC GAS & ELECTRIC CO.
Shared Package
ML16342D434 List:
References
NUDOCS 9609230037
Download: ML16343A442 (8)


See also: IR 05000275/1996016

Text

~~p,y REGGAEMp0

A0O

~o~

+>>*<<+

UNITED STATES

NUCLEAR REGULATORY COMIVIISSION

REGION IV

611 RYAN PLAZADRIVE. SUITE 400

ARLINGTON,TEXAS 76011-8064

~

September

12.,

1996

Gregory H. Rueger,

Senior Vice President

and General

Hanager

Nuclear

Power Generation

Bus. Unit

Pacific Gas

and Electric Company

Nuclear

Power Generation,

814A

77 Beale Street,

Room 1451

P.O.

Box 770000

San Francisco,

Cali fornia

94177

SUBJECT:

NRC

INSPECTION REPORT 50-275/96016;

50-323/96016

AND NOTICE OF

VIOLATION

Dear Hr. Rueger:

An NRC inspection

was conducted July 7 through August 17,

1996, at your Diablo

Canyon Nuclear

Power Plant, Units

1 and

2 reactor facilities.

The enclosed

report presents

the scope

and results of that inspection.

During the inspection, period, your conduct of activities at the Diablo Canyon

facility was generally characterized

by safety conscious

operations

and good

maintenance

and engineering practices;

however,

one violation was identified.

The violation addresses

the failure to perform

a prompt operability assessment

following identification of a degraded

condition and circuitry different than

that specified

by the design.

This issue is of concern since it potentially

affected four of your six EDGs and your staff was slow to assess

its impact on

the'EDGs'bility to perform their design function.

The violati.on is cited in the enclosed

Notice of ViolatIon (Notice) and the

circumstances

surrounding the violations are described in detail in the

enclosed

report.

Please

note that you are required to respond to this letter

and should follow the instructions specified in the enclosed

Notice when

preparing your response.

The

NRC will use your response,

in part, to

determine whether further enforcement

action is necessary

to ensure

compliance

with regulatory requirements.

In accordance

with 10 CFR 2.790 of the

NRC's "Rules of Practice."

a copy of

this letter, its enclosure(s),

and your response will be placed in the

NRC

Public Document

Room (PDR).

To the extent possible,

your response

should not

include any personal

privacy, proprietary,

or safeguards

information so that

it can be placed in the

PDR without redaction.

~l

9609230037

960912

PDR

ADOCK 05000275

9

PDR

~ g

Pacific Gas

and Electric Company

-2-

Should you have any questions

concerning this inspection,

we will be pleased

to discuss

them with you.

Sincerely,

(u 9M-~ q,

J.

E. Dyer, Director

Division of Reactor Projects

Docket Nos.:

50-275

50-323

License Nos.:

DPR-80

DPR-82

Enclosures:

1.

Notice of Violation

2.

NRC Inspection

Report

50-275/96016;

50-323/96016

cc w/enclosures:

Dr. Richard Ferguson

Energy Chair

Sierra

Club California

1100 11th Street,

Suite 311

Sacramento,

Ca 1 iforni a

95814

Hs.

Nancy Culver

San Luis Obispo Hothers for Peace

P.O.

Box 164

Pismo Beach, California

93448

Chairman

San Luis Obispo County Board of

Supervisors

" Room 370

County Government Center

San Luis Obispo, California

93408

Hr. Truman BurnshHr.

Robert Kinosian

California Public Utilities Commission

505 Van Ness.

Rm.

4102

San Francisco,

Cali fornia

94102

0

~'acific Gas

and Electric Company

-3-

Robert

R. Wellington.

Esq.

Legal

Counsel

Diablo Canyon

Independent

Safety Committee

857 Cass Street,

Suite

D

Monterey, California

93940

Mr. Steve

Hsu

Radiologic Health Branch

State

Department of Health Services

P.O.

Box 942732

Sacramento,

California

94234

Christopher J.

Warner,

Esq.

Pacific Gas

and Electric Company

P.O.

Box 7442

San Francisco,

Cali fornia

94120

Robert

P.

Powers,

Yice President

and Plant Manager

Pacific Gas

and Electric Company

Diablo Canyon

Power Plant

P.O.

Box 56

Avila Beach, California

93424

0

Pacific Gas

and Electric Company

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.

Ca 1 1 an

DRP Director

Branch Chief (DRP/E,

WCFO)

Senior Project Inspector

(DRP/E,

WCFO)

Branch Chief (DRP/TSS)

Leah Tremper

(OC/LFDCB,

MS:

TWFN 9E10)

Resident

Inspector

DRS-PSB

MIS System

RIV File

M.

Hammond

(PAO,

WCFO)

DOCUMENT NAME:

R:X DCNDC616RP.MDT

To receive copy of document,

indicate in box: 'C" = Copy without enciosures

"E" = Copy with enciosures

"N" = No copy

RIV:RI: DRP/E

MDTschi 1t

09

/96

C:DRP/E

FRHue

09/ P'96

D:WCFO

KEPerkins

09/

6

D:DRP

JED er

09/

6

0