ML18036B138
| ML18036B138 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 01/15/1993 |
| From: | Varga S Office of Nuclear Reactor Regulation |
| To: | Medford M Tennessee Valley Authority |
| Shared Package | |
| ML18036B139 | List: |
| References | |
| NUDOCS 9301220229 | |
| Download: ML18036B138 (6) | |
See also: IR 05000296/1993201
Text
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UNITED STATES
NUCLEAR REGULATORY COMIVllSSION
WASHINGTON, D.C. 20666
January
15,
1993
Docket Nos.:
50-259,
50-260
and 50-296
Valley Authority
Attn:
Dr. Hark O. Hedford, Vice President
Nuclear Assurance,
Licensing
and Fuels
3B Lookout Place
1101 Harket Street
Chattanooga,
37402-2801
Dear Dr. Medford:
SUBJECT:
PLANT DESIGN
CHANGE INSPECTION AT BROWNS
FERRY NUCLEAR PLANT
.
(NRC
INSPECTION
REPORT
NO. 50-296/93-201)
We are forwarding the report of 'a Plant Design
Change
Inspection
conducted
by
the Special
Inspection
Branch of the Office of Nuclear Reactor Regulation
from
November
16 through
December
4,
1992.
The inspection
involved activities
authorized
by Operating
License
Numbers
and
DPR-68 for the
Browns Ferry Nuclear Plant.
An exit meeting
was held on December
4,
1992
during which we discussed
the team's findings with your staff.
The Purpose
ok this. inspection
was to verify that your process for designing
modifications to Unit 3 appropriately
implemented
NRC regulations
and your
commitments,
and that the design controls for design
and field changes
were
adequate.
This was accomplished
by inspecting selected
design
change notice
(DCN) packages
issued
fo'r Unit 3 during
1991
and
1992,
as well as
DCNs for
Unit 2 which were also applicable to Unit 3.
The team reviewed
DCNs, field
changes
to DCNs
(FDCNs), calculations,
drawings,
procedures,
and other
doc'uments pertinent to the
DCNs.
The team found that the design
change
process
was adequately
implemented
and
controlled.
In general,
regulatory requirements
and licensing commitments
were complied with.
The design
documents
were thorough
and readily
accessible.
Your engineering
personnel
responded effectively to the team's
questions
and appeared
to have
a good understanding
of industry initiatives
concerning
the reactor level instrumentation
and electromagnetic
interference
qualification issues.
The team identified five deficiencies.
The most significant concerned
the
failure to properly evaluate
the radiological
consequences
during the
operation of the hardened
wetwell vent.
At a meeting with the
NRC staff on
December
16,
1992, your representatives
agreed to revise the design to
eliminate
manual
operation of the drain valves during venting
and evaluate
the
consequences
of ground-level
release
of radioactive materials
from open drain
valves during plant transients.
930i220229
930i'i5';: Il I
ADOCK 05000259
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January
15,
1993
The above deficiencies did not detract
from the team's overall favorable
impression of your design
change
process.
No response
to this letter is
required.
Any enforcement
actions resulting from this inspection will be
issued
by Region II.
In accordance
with 10 CFR 2.790(a),
a copy of this letter and the enclosure
will be placed in the
NRC Public Document
Room.
Should you have
any questions
concerning this inspection,
please
contact the
NRC Project Manager,
Joseph
Williams or the inspection
team leader,
Sam Halur.
Messrs.
Williams
and Halur can
be reached
at (301) 504-1470,
and
(301) 504-2963,
respectively.
Sincerely,
Original signed
by:
Steven
A. Varga, Director
Division of Reactor Projects, I/II
Office of Nuclear Reactor Regulation
l
Enclosure:
Inspection
Report 50-296/93-201
- SEE
PREVIOUS
CONCURRENCE
OFFICE:
RS IB: DRI L: NRR
RS IB: DRIL: NRR
SC: RS IB: DRI L
C: RS IB: DRI L
NAME:
DATE:
OFFICE:
NAME:
SKMalur:s *
1/08/93
DD:DRIL:NRR
RPZimk man
HBWan
1/
/93
D:DRIL:NRR
DPNorkin*
1/08/93
D'E
R
EVImbro*
1/08/93
DATE:
1/
/93
OFFICIAL RECORD
COPY
DOCUMENT NAME: BRFERY1
/
/93
/93
Y
0
Dr. Hark 0. Hedford
Valley Authority
Browns Ferry Nuclear Plant
CC:
Hr. John
B. Waters,
Chairman
Valley Authority
ET 12A
400 West Summit Hill Drive
Knoxville, Tennessee
37902
Hr. J.
R.
Bynum, Vice President
Nuclear Operations
3B Lookout Place
1101 Harket Street
Chattanooga,
37402-2801
Site Licensing Hanager
Browns Ferry Nuclear Plant
Valley Authority
P.O.
Box 2000
Decatur,
35602
Hr. 0. J. Zeringue,
Vice President
Browns Ferry Nuclear Plant
Valley Authority
P.O.
Box 2000
Decatur,
35602
Hr. H. J. Burzynski, Hanager
Nuclear
Licensing
and Regulatory Affairs
SB Lookout Place
Chattanooga,
37402-2801
TVA Representative
Valley Authority
11921 Rockville Pike
Suite
402
Rockville, Haryland
20852
General
Counsel
Valley Authority
ET IIH
400 West Summit Hill Drive
Knoxville, Tennessee
37902
Chairman,
Limestone
County Commission
P.O.
Box 188
Athens,
35611
Claude Earl
Fox, H.D.
State Health Officer
State
Dept. of Public Health
State Office Building
Hontgomery,
36130
Regional Administrator
U.S.N.R.C.
Region II
101 Harietta Street,
N.W.
Suite
2900
Atlanta, Georgia
30323
Hr. Charles
Patterson
Senior Resident
Inspe'ctor
Browns Ferry Nuclear Plant
U.S.N.R.C.
Route
12,
Box 637
Athens,
35611
Site guality Hanager
Browns Ferry Nuclear Plant
Valley Authority
P.O.
Box 2000
Decatur,
35602
el
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Distribution:
Docket Files 50-296
RSIB R/F
DRIL R/F
TEHurley,
FJHiraglia,
WTRussell,
JGPartlow,
CERossi,
RPZimmerman,
EVImbro,
DPNorkin,
SKHalur,
RLSpessard,
SAVarga,
FJHebdon,
JFWilli'ams,
HHSanders,
CAPatterson,
RII
Regional Administrators
Regional Division Directors
Inspection
Team
LPDR
ACRS (3)
OGC (3)
1S Distribution