ML17157A125

Forwards Draft Technical Rept A-3875-T4-1, HPCI Sys Risk-Based Insp Guide, for Comments

ML17157A125
Person / Time
Site:	Susquehanna
Issue date:	04/10/1990
From:	Thadani M Office of Nuclear Reactor Regulation
To:	Keiser H PENNSYLVANIA POWER & LIGHT CO.
Shared Package
ML17157A126	List: ML17157A125
References
NUDOCS 9004190098
Download: ML17157A125 (8)

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l UNITED STATES t NUCLEAR REGlJ LATORY COMMISSION WASHINGTON, D. C. 20555 April 10, 1990 Docket Nos.

50-387 and 50-388 Hr. Harold M. Keiser Senior Vice President-Nuclear Pennsylvania Power and Light Company 2 North Ninth Street Allentown, Pennsylvania 18101

SUBJECT:

INVITATION TO COMMENT ON RISK-BASED INSPECTION GUIDE FOR SUSIlUEHANHA STEAtii ELECTRIC STATION HIGH PRESSURE COOLANT INJECTION SYSTEM As part of tIRC's continuing efforts to use insights from probabilistic risk assessments (PRAs) to focus inspection activities at nuclear power reactors, the Risk Applications Branch is developing risk-based inspection guides (RIGs) for use by NRC inspectors.

Inspectors who have used previous RIGs have asked for more detail about -the probable causes of the component failures that the PRAs show to be most significant to risk.

The enclose'd draft RIG for the Susquehanna high pressure coolant injection (HPCI) system is our first attempt to provide our inspectors with this additional detail.

It incorporates digests of industry-wide and plant-specific operating experience in addition to the PRA insights and plant-specific design information contained in previous RIGs.

Because it is to be the prototype for similar documents at other reactors that do not have PRAs, this document draws risk insights primarily from a review of many BMR PRAs, rather than specifically from Susquehanna's PRA.

During our visit to PP&L headquarters in Allentown, Neil Coddington, Ray Harris, and several other members of the PPSL staff were quite helpful in providing the design data, procedures, and other information necessary to produce the enclosed draft.

They expressed an interest in seeing the draft, and we would be interested in any comments they care to make.

NRC's lead engineer for this project is Steve Long. If you or any members of your staff would like to discuss the draft or any other aspect of the RIG project, you can contact Nr. Long at 301-492-3162.

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Nr. Harold W. Keiser We thank PPSL for its cooperation with this project, and would be pleased to receive any comments you wish to make.

S in cere ly, Mohan C. Thadani, Project Manager Project Directorate I-2 Division of Reactor Projects I/II Office of Nuclear Reactor Regulation

Enclosure:

Draft Risk-Based Inspection Guide cc w/enclosure:

See next page

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Mr. Harold W. Keiser

$f April 10, 1990 We thank PPSL for its cooperation with this project, and would be pleased to receive any comments you wish to make.

Sincerely, Original signed by:

Mohan C. Thadani, Project Manager Project Directorate I-2 Division of Reactor Projects I/II Office of Nuclear Reactor Regulation

Enclosure:

Draft Risk-Based Inspection Guide cc w/enclosure:

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Mr. Harold W. Keiser Pennsylvania Power 4I Light Company Susquehanna S team Electric Station Units 1

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CC:

Jay Si lberg, Esq.

Shaw. Pittman, Potts Im Trowbridge 2300 N Street N.W.

Washington, D.C.

20037 Bryan A. Snapp, Esq.

Assistant Corporate Counsel Pernsylvania Power

-Im Light Company 2 North Ninth Street Allentown, Pennsy1vani a

18101 Mr. J.

M. Kenny Licensing Group Supervisor Pennsylvania Power 5 Light Company 2 North Ninth Street Al1entown, Pennsylvania 18101 Mr. Scott Barber Senior Resident Inspector U. S. Nuclear Regulatory Commission P.O.

Box 35 Berwick, Pennsylvania 18603-0035

'Mr. Thomas M. Gerusky, Director Bureau of Radiation Protection Resources Commonwealth of Pennsylvania P. 0.

Box 2063 Harrisburg, Pennsylvania 17120 Mr. Jesse C. Tilton, III Allegheny Elec. Cooperative, Inc.

212 Locust Street

'P.O.

Box 1266 Harri sburg, Pennsylvania 17108-1266 Mr. S.

B. Ungerer Joint Generation Projects Oepartment Atlantic Electric P.O.

Box 1500 1199 Black Horse Pike Pleasantvi lie, New Jersey 08232 Regional Administrator, Region I

U.S. Nuclear Regulatory Commission 4?5 Allendale Road King of Prussia, Pennsylvania 19406 Mr. R.

G. Byram Superintendent of Plant Susquehanna Steam Electric Station Pennsylvania Power and Light Company 2 North Ninth Street Allentown, Pennsy 1 vani a 18101 Mr. Herbert D. Woodeshick Special Office of the President Pennsylvania Power and Light Company 1009 Fowles Avenue Berwick, Pennsylvania 18603 Mr. Neil Coddington Pennsylvania Power

& Light 2 North Ninth Street Allentown, PA 18101

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