ML16342A645
| ML16342A645 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 01/12/1999 |
| From: | Laura Smith NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Rueger G PACIFIC GAS & ELECTRIC CO. |
| Shared Package | |
| ML16342A646 | List: |
| References | |
| RTR-NUREG-0737, RTR-NUREG-737 50-275-98-21, 50-323-98-21, NUDOCS 9901200310 | |
| Download: ML16342A645 (12) | |
See also: IR 05000275/1998021
Text
,CATEGORY 2
REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)
CCESSION NBR:9901200310
DOC.DATE: 99/01/12
NOTARIZED: NO
FACIL:50-275 Diablo Canyon Nuclear Power Plant, Unit 1, Pacific
Ga
50.-323 Diablo Canyon Nuclear Power Plant, Unit 2, Pacific
Ga
AUTH.NAME
AUTHOR AFFILIATION
SMITH,L.J.
Region
4
(Post
820201)
RECZP.NAME
RECIPIENT AFFILIATION
RUEGER,G.M.
Pacific Gas
&, Electric Co.
DOCKET I
05000275
05000323
SUBJECT: Discusses
insp repts 50-275/98-21
&, 50-323/98-21
on
981204-18
6 forwards NOV.Violation identified involving two
examples of failure to meet
NRC requirements.Insp
focused
on
operator performance in response
to 981201 manual
RT.
DISTRIBUTION CODE: IEOIF
COPIES
RECEIVED:LTR g
ENCLj
SIZE:
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TITLE: General
(50 Dkt)-Insp Rept/Notice of Violation Response
NOTES:
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RECIPIENT
ID CODE/NAME
PD4-2
INTERNAL: ACRS
FILE CE
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NUDOCS-ABSTRACT
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EXTERNAL: LITCO BRYCE, J H
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UNITED STATES
NUCLEAR REGULATORY COMMISSION
REGION IV
611 RYAN PLAZAORIVE. SUITE 400
ARLINGTON.TEXAS 76011 6064
JAN
j 2 l999
Gregory M. Rueger, Senior Vice President
and General Manager
Nuclear Power Generation Bus. Unit
Pacific Gas and Electric Company.
Nuclear Power Generation, B32
77 Beale Street, 32nd Floor
P.O. Box 770000
San Francisco, California 94177
SUBJECT: NRC INSPECTION REPORT 50-275/98-21; 50-323/98-21 AND NOTICE OF
VIOLATION
Dear Mr. Rueger:
From December 4 to 18, 1998, a special inspection was conducted at your Diablo Canyon
Nuclear Power Plant, Unit 2, reactor facility. The focus of the inspection was to evaluate
operator performance in response to the December 1, 1998, manual reactor trip and loss of
circulating water. The enclosed report presents the scope and results of that inspection.
Overall, operators responded satisfactorily to the reactor trip and loss of circulating water, the
normal heat sink. The operators effectively stabilized the plant in a safe condition. However,
based on the results of this inspection, the NRC has determined that one violation involving two
examples of failure to meet NRC requirements occurred.
The violation is cited in the enclosed
Notice of Violation (Notice) and the circumstances surrounding it are described in detail in the
subject inspection report.
In the first example, a misunderstanding by operators regarding the
effect of adjusting the atmospheric dump valve resulted in a high pressure setting that
unnecessarily challenged the main steam safety valves.
In the second example, a lack of
understanding of the response of the circulating water differential pressure indication to a
reactor trip resulted in a delay in securing the circulating water pump. These examples were
both contrary to procedure guidance.
We acknowledge that your staff likelywould have identified the first example during their
posttrip review, which, according to the Enforcement Manual, qualifies for licensee identification
credit. However, notwithstanding the guidance in Section VII.B.1 of the Enforcement Manual,
this example is being cited because both violation examples were partially caused by training
weaknesses
and because this example of the violation resulted in an unnecessary
liftof Main
Steam Safety Valve RV-7. In addition, the inspectors noted that a lack of formality and
structure in evaluating human performance and a lack of detail in operating logs made'it difficult
to reconstn;ct the event.
)
The NRC has concluded that information regarding the reason for the violation, the corrective
actions taken and planned to correct the violation and prevent recurrence, and the date when
full compliance was achieved is already adequately addressed
on the docket in the enclosed
inspection report. Therefore, you are not required to respond to this letter unless the
990i2003i0 990ii2
ADOCK 05000275
9
Pacific Gas and Electric Company
-2-
description therein does not accurately reflect your corrective actions or your position.
In that
case, or ifyou choose to provide additional information, you should followthe instructions
specified in the enclosed Notice.
In accordance with 10 CFR 2.790 of the NRC's "Rules of Practice," a copy of this letter, its
enclosures; and your response willbe placed in the NRC Public Document Room (PDR).
Should you have any questions concerning this inspection, we willbe pleased to discuss them
with you.
Sincerely,
Linda J. Smi, Acting Chief
Project Branch E
Division of Reactor Projects
Docket Nos.:
50-275
50-323
License Nos.: DPR-80
DPR-82
Enclosures:
1.
2.
NRC Inspection Report
50-275/98-21; 50-323/98-21
cc w/enclosures:
Dr. Richard Ferguson
Energy Chair
1100 lith Street, Suite 311
Sacramento, California 95814
Ms. Nancy Culver
San Luis Obispo Mothers 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
0
Pacific Gas and Electric Company
-3-
Mr. Truman Burns>Mr. Robert Kinosian
California Public Utilities Commission
505 Van Ness, Rm. 4102
San Francisco, California 94102
Robert R. Wellington, Esq.
Legal Counsel
Diablo Canyon Independent Safety Comniittee
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, California 94120
David H. Oatley, Vice President
Diablo Canyon Operations and Plant Manager
Diablo Canyon Nuclear Power Plant
P.O. Box 3
Avila Beach, California 93424
Managing Editor
Telegram-Tribune
1321 Johnson Avenue
P.O. Box 112
San Luis Obispo, California 93406
0
Pacific Gas and Electric Company
-4-
JAN
I 2 I999
E-Mail report to T. Frye (TJF)
E-Mail report to D. Lange (DJL)
E-Mail report to NRR Event Tracking System (IPAS)
E-Mail report to Document Control Desk (DOCDESK)
E-Mail report to Richard Correia (RPC)
E-Mail report to Frank Talbot (FXT)
bcc to DCD (IE01)
bcc distrib. by RIV:
Regional Administrator
DRP Director
Branch Chief (DRP/E)
Senior Project Inspector (DRP/E)
Branch Chief (DRP/TSS)
Resident Inspector
DRS-PSB
MIS System
RIV File
DOCUMENT NAME: R'3 DC>DC821RP.SAB
To receive co
of document, indicate in box: "C" ~ Co
without enclosures
E
~ Co
with enclosures "N" = No co
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OFFICIALRECORD COPY
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Pacific Gas and Electric Company
-4-
JAN
I 2 I999
E-Mail report to T. Ffye (TJF)
E-Mail report to D. Lange (DJL)
E-Mail report to NRR Event Tracking System (IPAS)
E-Mail report to Document Control Desk (DOCDESK)
E-Mail report to Richard Correia (RPC)
E-Mail report to Frank Talbot (FXT)
bcc to DCD (IE01)
bcc distrib. by RIV:
Regional Administrator
DRP Director
Branch Chief (DRP/E)
Senior Project Inspector (DRP/E)
Branch Chief (DRP/TSS)
Resident Inspector
DRS-PSB
MIS System
RIV
Fife'OCUMENT
NAME: R:i Dc'IDC821RP.SAB
To receive co
of document. Indicate In box: "C" = Co
without enclosures
E
= Co
with enclosures "N = Noco
RIV:SRI:W P-2
NRR:HHFB
SPE:DRP/E,
AC:DRP/E
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