ML20196J398

Responds to GL 98-01,Suppl 1, Y2K Readiness of Computer Sys at Npps. Y2K Readiness Disclosure for TMI-1 Encl

ML20196J398
Person / Time
Site:	Three Mile Island
Issue date:	07/01/1999
From:	Langenbach J GENERAL PUBLIC UTILITIES CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
1920-99-20275, GL-98-01, GL-98-1, NUDOCS 9907070256
Download: ML20196J398 (4)

Text

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l GPU Nuclear, Inc.

( Route 441 South NUCLEAR P**'0"ic*B***B0 Middletown, PA 17057-0480 Tel 717-944 7621 July 1,1999 l 1920-99-20275 {

l U. S. Nuclear Regulatory Commission )

Attention: Document Control Desk )

Nuclear Regulatory Commission Washington, DC 20555-0001

Subject:

Three Mile Island Nuclear Station, Unit 1 (TMI-1)

Operating License No. DPR-50 Docket No. 50-289 Response to Generic Letter (GL) 98-01, Supplement 1, " Year 2000 Readiness of Computer Systems at Nuclear Power Plants" The purpose of this letter is to respond to the Nuclear Regulatory Commission's request I for information regarding Year 2000 (Y2K) readiness at nuclear power plants. Generic  !

Letter 98-01 requested a response on the status of facility Y2K readiness by July 1,1999.

On January 14,1999, the Commission issued Supplement 1 to Generic Letter 98-01 to 1

l. modify the request for information in the original generic letter. The Supplement stated:

l l "In responding to this supplement to GL 98-01, the addressee should confirm Y2K l readiness of the facility with regard to those systems within the scope of the license and NRC regulations, and those systems required for continued operation of the facility after January 1,2000. For those systems which are not Y2K ready as ofJuly 1,1999, the addressee should provide a status and completion schedule for achieving readiness by the year 2000."

In response, GPU Nuclear Inc. is reporting facility readiness as outlined in Supplement 1 l to Generic Letter 98-01. Enclosed is the Y2K Readiness Disclosure for TMI-1, reporting I the status of facility Y2K readiness. This disclosure is submitted under the provisions of 3

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1920-99-20275 Response to GL 98-01, Supp.1 Page 2 of 2 the _ Year 2000 Information and Readiness Disclosure Act,105 Public Law 271,112 Statute 2386 (1998).

-Sincerely, James W. Langenbach Vice President and Director, TMI Enclosure Attachment cc: Regional Administrator TMI-l NRC Project Manager TMI Sr. Resident Inspector Nuclear Energy Institute I

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'J Enclosure 1920-99-2027f Response to GL 98-01, Supp.1

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Year 2000 (Y2K) Readiness Disclosure Three Mile Island Nuclear Station. Unit 1 (TMI-1)

This Y2K readiness disclosure is made for TMI-l under the Year 2000 Information and Readiness Disclosure Act,105 Public Law 271,112 Statute 2386 (1998).

This disclosure addresses the Y2K readiness of the facility with regard to those systems within the scope of the license, NRC regulations, and otkr systems required for continued operation of the facility aRer January 1,2000. A facility that is "Y2K Ready"

. has followed a prescribed program to identify and resolve Y2K issues so the facility can operate reliably while meeting commitments.

GPU Nuclear Inc. has conducted a Y2K readiness program similar to that outlined in Nuclear Utility Year 2000 Readiness. NEl/NUSMG 97-07. The program applies to sonware, hardware and firmware whose failure due to a Y2K problem would prevent the

. perf ormance ofh t e safety funct ion o fa structure, system or component. Additienally, the program applies to any sonware, hardware, or firmware whose failure due to a Y2K problem would prevent continued operation of the nuclear facility well beyond December  ;

31,1999. The facility program includes identifying and, where appropriate, remediating i embedded systems.- Remediation is the process of retiring, replacing, or modifying sonware or devices that are to be retained in service, but have been determined to be j affected by the Y2K problem. The program also provides for risk management efforts and development of contingency plans for the key rollover period.

The Y2K readiness program has been completed through the detailed assessment, remediation, and testing and validation phases for those components, systems, software, ,

and services within the scope of the license, NRC regulations, and other systems required l for continued operation of the facility aner January 1,2000. The readiness program has also addressed those telecommunications systems, both wireline and wireless, that are important to the operation of the facility and are under the GPU companies' control.

Attachment I contains a listing of systems that remain to be remediated to achieve Y2K readiness at the facility. The sonware systems listed are commonly shared with our Oyster Creek Nuclear Generating Station.

To the bect of our knowledge and belief, upon completion of the listed items, TMI-l will be "Y2K Ready". Further, appropriate contingency plans have been developed to mitigate the impact of Y2K-induced events at the key rollover period.

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