ML17083C398
| ML17083C398 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 02/28/1992 |
| From: | Richards S NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| To: | Rueger G PACIFIC GAS & ELECTRIC CO. |
| Shared Package | |
| ML17083C399 | List: |
| References | |
| NUDOCS 9203170138 | |
| Download: ML17083C398 (6) | |
See also: IR 05000275/1992001
Text
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UNITED STATES
NUCLEAR REGULATORYCOMMISSION
REGION V
1450 MARIALANE
WALNUTCREEK, CALIFORNIA94596-5368
FE,B RS 1RR
Pacific Gas
and Electric Company
77 Beale Street
San Francisco,
California 94106
Attention:
Mr. G.
M. Rueger,
Senior Vice President
and General
Manager
Nuclear
Power Generation
Business
Unit
Gentlemen:
Subject:
NRC Inspection of Diablo Canyon Units
1
and
2
This refers to the routine inspection
conducted
by H. Wong,
M. Miller, and
D. Acker during the period of January
1 through February 3, 1992.
This
inspection
examined
your activities
as authorized
by
NRC License
Nos.
and
At the conclusion of the inspection,
discussions
of the
inspectors'indings
were held with you
and
members of your staff.
Areas
examined during this inspection
are described
in the enclosed
inspection
report.
Within these
areas,
the inspection
consisted
of selective
examinations
of procedures
and representative
records,
interviews with
personnel,
and observations
by the inspectors.
Based
on the results of this inspection, it appears
that
one of your
activities was not conducted
in full compliance with NRC requirements,
as set
forth in the enclosed
The inspection identified
a
failure of Unit 2 to comply with a Technical Specifications
action statement
in
October
1991,
due to
an undetected failure of
a reactor cavity sump wide range
level channel.
A similar fai lure occurred in 1990
and
was not detected for
over two months.
We conclude that your corrective actions for the
1990
failure were inadequate
because
they did not address
the
adequacy of your
surveillance
program to detect failed Technical Specification
equipment.
You
appear to have missed
an opportunity to have precluded
the October
1991
undetected failure.
You are required to respond to this letter
and should follow the instructions
specified in the enclosed
Notice when preparing your response.
In your
response,
you should
document the specific actions
taken
and
any additional
actions
you plan to prevent recurrence.
After reviewing your response
to
this Notice, including your proposed
corrective actions
and the results of
future inspections,
the
NRC will determine
whether further
NRC enforcement
action is necessary
to ensure
compliance with NRC regulatory requirements.
In accordance
with 10 CFR 2.790 of the
NRC's "Rules of Practice,"
a copy of
this letter
and the enclosures will be placed in the
NRC Public Document
Room.
The responses
directed
by this letter are not subject to the clearance
procedures
of the Office of Management
and Budget
as required
by the Paperwork
Reduction Act of 1980,
Pub. L. No.96-511.
'9203170138
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Should you have
any questions
concerning this inspection,
we will be pleased
to discuss
them with you.
Sincerely,
S.
A. Richards,
Chief
Reactor Projects
Branch
Enclosures:
1.
. 2.
Inspection
Report
Nos. 50-275/92-01
and 50-323/92-01
cc w/enclosures:
J.
A. Sexton,
PGEE
R. F. Locke,
PGEE
J.
D. Townsend,
PGLE (Diablo Canyon)
D. A. Taggart,
PGEE (Diablo Canyon)
T. L. Grebel,
PGEE (Diablo Canyon)
C. B. Thomas,
News Services,
PGEE
State of California
R. Hendrix, County Administrator
Sandra Silver
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Project Inspector
Resident
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G.
Cook
B. Faulkenberry
J. Martin
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