ML20151D546

Forwards Sser for Second 10-yr Interval of Inservice Testing of Pumps & Valves Commenced in Sept 1984.SSER Discusses Pair of Valves Noted in Insp Rept 50-289/87-10 Not to Be Included in Inservice Testing Program.Requests Confirmation of Mod

ML20151D546
Person / Time
Site:	Three Mile Island
Issue date:	03/31/1988
From:	Stolz J Office of Nuclear Reactor Regulation
To:	Hukill H GENERAL PUBLIC UTILITIES CORP.
Shared Package
ML20151D550	List: ML20151D546 ML20151D561
References
NUDOCS 8804140306
Download: ML20151D546 (3)

See also: IR 05000289/1987010

Text

March 31,1988

o

). 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.

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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

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(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$ [s

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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

M b 3%?4 p '

John F. Stolz, Director

Project Directorate I-4

Division of Reactor Projects I/II

Office of Nuclear Reactor Regulation

Enclosure:

Supplemental Safety Evaluation

cc w/ enclosure:

See next page

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03/A3/88 03 c /88 03/g 8 3 /88

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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 l

'

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 l

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 l

Harrisburg, Pennsylvania 17120 I

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 I

Middletown, Pennsylvania 17057

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