ML20151D546
| ML20151D546 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 03/31/1988 |
| From: | Stolz J Office of Nuclear Reactor Regulation |
| To: | Hukill H GENERAL PUBLIC UTILITIES CORP. |
| Shared Package | |
| ML20151D550 | List: |
| References | |
| NUDOCS 8804140306 | |
| Download: ML20151D546 (3) | |
See also: IR 05000289/1987010
Text
March 31,1988
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Occket No. 50-289
DISTRIBUTION
< Docket 411e >
RPernan
NRC & Local PORs
OGC-WF
S. Varga
E. Jordan
Mr. Henry D. Fukill, Vice President
B. Boger
J. Partlow
and Director - TMI-1
J. Stolz
ACRS (10)
GPU Nuclear Corporation
S. Norris
Gray File
P. O. Box 480
Middletown, Pennsylvania
17057
Dear Mr. Hukill:
SUBJECT: SUPPLEMENTAL' SAFETY EVALUATION FOR SECOND IST INTERVAL
The second 10-year interval of inservice testing (IST) of pumps and valves
convenced in Septenber,1984
A number of GPU Nuclear proposals and relief
requests regarding the content and methods of the second interval IST program
have been received and evaluated during the past four years. The NRC staff
provided GPU Nuclear with its safety evaluation of these proposals on March 19,
1987. In that safety evaluation we granted relief in sone cases, denied relief
in cther cases and offered GPU Nuclear an opportunity to provide additional
justification for relief as appropriate.
GPU Nuclear has provided additional
justification in submittals dated September 17 and November 3,1987. The
forner letter dealt with deletion of two valves in the emergency diesel gener-
ator starting air system (EG-V17A/B) from the IST program. The latter dealt
with periodic disassembly of four sets of check valves (BS-V30 A/B, BS-V52 A/B,
DH-V14A/B,MS-V9A/B).
This letter transmits a supplenent to our March 19, 1987
safety evaluation which addresses these two recent GPU submittals.
In addition,
,
the safety evaluation discusses a pair of valves (EG-V10 A/B) which were noted
1
in NRC Inspection Report No. 87-10 to not be included in the TMI Unit 1 IST
,
program.
The enclosed safety evaluation supplement nakes the following conclusions:
1.
The NRC staff agrees that valves EG-V17 A and B do not perform a safety-
related function and nay be excluded from the IST program.
2.
The inspection program for disassembly of the check valves listed above
.
as stipulated in our March 19, 1987 safety evaluation is to be naintained
(i.e., sample inspection during each refueling outage) on the basis that
relaxation of the inspection frequency to one valve each 10 years has not
(and possibly cannot) been justified.
3.
GPU Nuclear is requested to add valves EG-V10 A and B to the TMI-1 IST
program on the basis that they do provide a safety-related function and
should have originally been included in the program.
%DNo$
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_ _ ___ _ -_______ __ __ --__ -
.
.
.
- .
.
.
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.
Our March 19, 1987 safety evaluation stated that several plant n:odifications
needed to allcw inservice testing of various corrponents were planned during
the 7R refueling outage.
This outage is scheduled to begin in June, 1988
Please provide at least verbal confinnation that each of these n:odifications
is in fact scheduled for completion during this outage.
If you have any questions on the enclosed safety evaluation, please contact the
Project Manager, Rena'd W. Hernan.
Sincerely,
'o-
,- a IcRG Br
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John F. Stolz, Director
Project Directorate I-4
Division of Reactor Projects I/II
Office of Nuclear Reactor Regulation
Enclosure:
Supplemental Safety Evaluation
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See next page
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Mr. Henry D. Hukill
Three Mile Island Nuclear Station,
.
GPV Nuclear Corporation
Unit No. I
cc:
G. Broughton
Richard Conte
OlM Director, TNI-1
Senior Resident Inspector (TMI-1)
GPV Nuclear Corporation
U.S.N.R.C.
Post Office Box 480
Post Office Box 311
Middletown, Pennsylvania 17057
Middletown, Pennsylvania 17057
Richard J. McGoey
Manaaer, PWR Licensing
Regional Administrator, Region I
GPU Nuclear Cnrporation
U.S. Nuclear Regulatory Connission
100 Interpace Parkway
475 Allendale Road
Parsippany, New Jersey 70754
King of Prussia, Pennsylvania
19406
C. W. Smyth
Robert B. Borsum
,
TMI-1 Licensing Manager
Babcock 1. Wilcox
'
GPU Nuclear Corporation
Nuclear Power Generation Division
Post Office Box 480
Suite 525
'
Middletown, Pennsylvania
17057
1700 Rockville Pike
Rockville, Maryland 20852
Ernest L. Blake, Jr., Esq.
Governor's Office of State Planning
Shaw, Pittman, Potts A Trowbridge
and Development
2300 N Street, N.W.
ATTN:
Coordinator, Pennsylvania
Washington, D.C.
20037
State Clearinghouse
Post Office Box 1323
Harrisburg, Pennsylvania 17120
Larry Hochendoner
Thomas M. Gerusky, Director
Dauphin County Connissioner
Bureau of Radiation Protection
Dauphin County Courthouse
Pennsylvania Department of
Front and Varket Streets
Environmental Resources
Harrisburg, Pennsylvenia 17120
Pcst Office Box 2063
Harrisburg, Pennsylvania 17120
David D. Maxwell, Chairman
Docketing and Service Section
Board of Supervisors
Office of the Secretary
j
Londonder;y Township
U.S. Nuclear Regulatory Commission
RFD#1 - Geyers Church Road
Vashington, D.C.
20555
Middletown, Pennsylvania 17057
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