ML16342B907
| ML16342B907 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 08/13/1992 |
| From: | Richards S NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| To: | Rueger G PACIFIC GAS & ELECTRIC CO. |
| Shared Package | |
| ML16341G675 | List: |
| References | |
| NUDOCS 9209010134 | |
| Download: ML16342B907 (4) | |
See also: IR 05000275/1992020
Text
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UNITED STATES
NUCLEAR REGULATORYCOMMISSION
REGION V
1450 MARIALANE
WALNUTCREEK, CAUFPRNIA94596-5368
(gag i S 1992
Pacific Gas
and Electric Company
Nuclear
Power Generation,
B14A
77 Beale Street,
Room 1451
P. 0.
Box 770000
San
F} ancisco, California 94177
Attention:
Hr.
G.
M. Rueger,
Senior Vice President
and General
Manager
Nuclear
Power Generation
Business
Unit
Subject:
NRC Inspection of Diablo Canyon Units
1 and
2
This refers to the routine inspection
conducted
by H. Hiller and
P. Horrill
during the period from June
2 through July 13,
1992.
This inspection
examined
your activities
as authorized
by NRC License Nos.
At the
conclusion of the inspection,
the inspectors
discussed their findings with
members of the
PG&E staff.
Areas
examined during this inspection
are described
in the enclosed
inspection
report.
Within these
areas,
the inspection consisted of selective
examina-
tions of procedures
and representative
records,
interviews with personnel,
and
observations
by the inspectors.
Based
on the results of this inspection, it appears
that certain of your
activities were not conducted in full compliance with NRC requirements,
as set
forth in the enclosed
Notice of Violation (Notice).
The first violation focuses
on the fact that the positive displacement
charging
pumps
(PDPs)
have not been
known to be capable of meeting fire
protection requirements for nearly two years
and instructions to the operators
on the use of the
pumps
was not adequate
given the degraded
state of the
pumps.
Compensatory
measures,
such
as hourly fire watches,
have
been put in
place,
however,
inadequate
guidance to operators for use of the PDP's
has
persisted
without resolution.
In addition, six revisions of the associated
Justification for Continued Operation
(JCO) stated that with the
PDP
unavailable,
the plant could be shut
down using procedure
AP-17,
"Loss of
Charging."
AP-17 had not been
reviewed to ensure that it would still provide
adequate
instructions during
a fire in the area of the centrifugal
charging
pumps.
We are concerned that your staff did not promptly or effectively
identify these
problems
and that no one group took enough responsibility to
question the interim status of the PDP's nor ensure that adequate
procedures
were provided to the operators.
This appears to be
an example of PG&E's
difficulty in consistently achieving prompt and comprehensive
corrective
action.
The second violation relates to prompt reports to the
NRC pursuant to
10 CFR 50;72.
We strongly encourage
your staff to maintain
a low threshold
for both operability and reportability determinations.
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34 920813
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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(a),
a copy of this letter, the enclosures,
and
your response will be placed in the
NRC, Public Document
Room.
This letter and its enclosures
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.96-511.
Should you have
any questions
concerning this inspection,
we will be pleased
tn discuss
them with you.
Sincerely,
S. A. Richards,
Chief
Reactor Projects
Branch
Enclosures:
1.
2.
Inspection Report Nos. 50-275/92-20
and 50-323/92-20
cc w/enclosures:
J. A. Sexton,
PG8E
C. J. Marner,
PGLE
J.
D. Townsend,
PGLE (Diablo Canyon)
D. A. Taggart,
PGKE (Diablo Canyon)
T. t.. Grebel,
PG&E (Diablo Canyon)
C. B. Thomas,
News Services,
PGKE
State of California
R. Hendrix, County Administrator
Sandy Silver
I