ML17332A330
| ML17332A330 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 10/04/1994 |
| From: | Wright E NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Fitzpatrick E INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG |
| References | |
| NUDOCS 9410070014 | |
| Download: ML17332A330 (2) | |
See also: IR 05000315/1993012
Text
October 4,
1994
Company
ATTN:
Mr. E.
E. Fitzpatrick
Vice President
1 Riverside
Plaza
Columbus,
OH
43216
SUBJECT:
NOTICE OF VIOLATION:
NRC
INSPECTION
REPORT
NOS.
50-315/93012(DRS);
50-316/93012(DRS)
Dear Mr. Fitzpatrick:
Thank you for your January
4,
1994, letter informing us of the steps
you have
taken to correct the violations addressed
in Inspection
Report
Nos.
50-314/93012(DRS);
50-316/93012(DRS).
The inspection report was
transmitted
by our November 24,
1993, letter.
With regard to your response
to violation No. 2,
we disagree
with your
position that this violation does not represent
a departure
from compliance
with NRC regulations.
Specifically,
we do not agree with your interpretation
of 10 CFR 50.59 that the specific speed control circuitry needs to be
explicitly described
in the
UFSAR to prompt
a safety evaluation.
It is our
position that if the structure,
system or component
(SSC)
being modified can
affect the performance of a larger
SSC, in this case
the speed
control circuit
affecting the feedwater
pump,
then
a safety evaluation
must
be performed.
The steam generator
feedwater control system,
the feedwater
system,
and the
pump's variable
speed
mechanical
drive are addressed
in the
In particular,
UFSAR Section
10.5. 1. 1 states that "the variable
speed turbine
driven main feedwater
pumps are designed to provide the required feedwater
flow to the steam generators."
The steam generator
system is
an
important system in ensuring
continued heat
removal
from the reactor core.
A
safety evaluation
should
have
been
performed to assess
the potential
consequences
of modifying the turbine's
speed control
system with respect to,
among others,
the probability of occurrence of a loss of feedwater accident.
Because
your screening
process
apparently
focuses
only on structures,
systems,
or components
which are explicitly described
in the
UFSAR, the potential
exists for modifications to be implemented without
a thorough safety
evaluation.
9'4i0070014 9'4i004
ADOCK 050003i5
8
l
/ u8L(C ~e-0(
E.
E. Fitzpatrick
October 4,
1994
Please
provide your response
to this concern within 30 days of this letter.
Sincerely,
Docket No. 50-315
Docket No. 50-316
G.
C. Wright, Chief
Engineering
Branch
Enclosure:
Ltr dtd 01/04/94,
E.
E. Fitzpatrick to J.
B. Hartin
cc w/o encl:
A. A. Blind, Plant Manager
cc w/encl:
James
R. Padgett,
Michigan Public
Service
Commission
EIS Coordinator,
USEPA
Region
5 Office
Michigan Department of Public Health
Distribution
Docket File w/encl
PUBLIC IE-01 w/encl
OC/LFDCB w/encl
RIII PRR w/encl
RI,
D.
C.
Cook w/encl
LPH,
NRR w/encl
DOCUMENT NAME:
G:DCCOOK.RES
To receive a copy of this document, Indicate in the box 'C" ~ Copy w/o attach/encl 'P ~ Copy with attach/encl 'N'
No copy
OFFICE
RIII:DRS
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DATE
hS/ ~/94
RI II:DRP
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RIII:DRS
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N/S/94
09/I> /94
OFFICIAL RECORD
COPY
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