ML20209B700

Responds to GL 98-01,Suppl 1, Y2K Readiness of Computer Sys at Nuclear Power Plants

ML20209B700
Person / Time
Site:	Peach Bottom, Limerick
Issue date:	06/30/1999
From:	Hagan J PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
GL-98-01, GL-98-1, NUDOCS 9907070399
Download: ML20209B700 (5)

Text

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,. Servor Vee Presdent - Nuclear Operations

'. Z_ PECo Nuclear PECO NUCLEAR PEc ' **O*,"* '

A Unit of PECO Energy $5j'p*)"{N6I y

610 640 6100 June 30,1999 Docket Nos. 50-277 50-278 50-352 50-353 License Nos. DPR-44 DPR-56 NPF-39 NPF-85 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555

Subject:

Peach Bottom Atomic Power Station, Units 2 and 3 Limerick Generating Station, Units 1 and 2 Response to Generic Letter 98-01, Supplement 1,

" Year 2000 Readiness of Computer Systems at Nuclear Power Plants"

Dear Sir / Madam:

This letter is in response to Generic Letter (GL) 98-01, Supplement 1, " Year 2000 Readiness of Computer Systems at Nuclear Power Plants," dated January 14,1999 for Peach Bottom Atomic Power Station (PBAPS), Units 2 and 3, and Limerick Generating Station (LGS), Units 1 and 2.

This correspondence completes our response to the GL.

As discussed in Supplement 1, addressees may respond to the supplement to GL 98-01 in lieu of item (2) of GL 98-01. In responding to this supplement to GL 98-01, the addressee should confirm Y2K readiness of the facility with regard to the systems within the scope of the license and NRC regulations, and the systems required for continued operation of the facility after January 1,2000. For those systems which are not Y2K ready as of July 1,1999, the addressees should provide a status and completion schedule for achieving readiness by the year 2000.

PECO Energy Company is providing our response to this request in Attachments A and B of this letter, if you have any questions, please contact us.

Very truly yours a_ _

l Jo J.Ha Senior Vice esideni i NuclearOper ' ns O

Attachments cc: H. J. Miller, Administrator, Region I, USNRC A. C. McMurtray, USNRC Senior Resident inspector, PBAPS A. L. Burritt, USNRC Senior Resident inspector, LGS 9907070399 990630 PDR ADOCK 05000277 P pm

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June 30,1999 i - Page 2 bec: N. J. Sproul, Public Service Electric & Gas R. l. McClean, State of Maryland A. F. Kirby, lil, Delmarva Power & Light Company /Atlacilc Electric

R. R. Janati, Commonwealth of Pennsylvania ,

i G. R. Rainey - 63C 3 J

l C. P Lewis - 63C-3 L J. J. Hagan - 62C-3 l ~ J. D. von Suskil - LGS, SMB1-1 l J. Doering - PB, SMB4-9 l M. E. Warner- PS, A4-1S l M. P. Gallagher - LGS, GMLS-1 l G. L. Johnston - PB, SMB3-2A

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J. P. Grimes - LGS, SSB3-1 E. F. Sproat - 63B-1 C. B. Anders - 63C-3 l R. A. Kankus - 63C 2 l A. A. Winter- PB, A4-SS L K. P. Bersticker - LGS, SSB2-4 J. G. Hufnagel/TRL - 62A-1 D. P. Helker - 62A 1 PBAPS ISEG - PB, SMB4-6 PA DEP BRP inspector- LGS, SSB2-4 Commitment Coordinator- 62A 1 Correspondence Control Desk - 61B 5 DAC - 61 B-5 F. Gibson, Jr. - 61 A-2 l

J. T. Netzer - 61 A-2 J. L. Clupp, Jr. - PB, A4-8N G. D. Cremer, ll - 62C-7 S. Funsten - 61 A-2 l . R. Wiegle - 61 A 2 H. J. Diamond - 628-1 S. J. Mannix - 62C-1

F. D. Galatola - MOB, NS-7 j R. Canziani- LGS, SSB14

R. J. Farrington - MOB, N2-6 i i R. P. Miller - 628-1 ,

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o Response to GL 98-01, Supp.1 1 Page1 This information constitutes a Year 2000 Readiness Disclosure under the Year 2000 Information and Readiness Disclosure Act Attachment A This year 2000 readiness disclosure is made for Peach Bottom Atomic Power Station, Units 2 and 3, and Umerick Generating Station, Units 1 and 2 (hereinafter "the nuclear facilities")

under the " Year 2000 Information and Readiness Disclosure Act" (Public Law 105-271).

This disclosure addresses the Y2K readiness of the nuclear facilities with regard to those

- systems within the scope of the license, NRC regulations, and other systems required for continued operation of the nuclear facilities after January 1,2000. A nuclear facility that is "Y2K Ready" has followed a prescribed program to identify and resolve Y2K issues so the nuclear facilities can operate reliably while meeting commitments.

PECO Energy Company has conducted a year 2000 readiness program similar to that outlined in Nuclear Utilitv Year 2000 Readiness. NEl/NUSMG 97-07 for our nuclear facilities. The program applies to software, hardware and firmware whose failure due to a Y2K problem l would prevent the performance of the safety function of a structure, system or component. l Additionally, the program applies to any software, hardware, or firmware whose failure due to a  ;

Y2K problem would prevent continued operation of the nuclear facilities well beyond December )

31,1999, The facility program also includes identifying and, where appropriate, remediating embedded systems. The program provides for risk management efforts and development of contingency plans for key rollover dates.

l The PECO Energy Company nuclear facilities are an integrated participant in the corporate- I wide PECO Energy Company Y2K readiness program. This corporate program is reviewing the appropriate non-nuclear system wide embedded systems and components, which are not the subject of this disclosure, to ensure availability of offsite power and grid stability during rollover. In the event of major system disturbances, procedures are in place to restore power to i transmission substations, non-nuclear generating stations and nuclear facilities. These i procedures have been reviewed to address Y2K concems.

The Y2K readiness program has been completed through the detailed assessment phase for those components and systems required for operation of the Peach Bottom Atomic Power Station, Units 2 and 3, and Limerick Generating Station, Units 1 and 2 facilities. Attachment B contains a listing of systems that need to be remediated to achieve year 2000 readiness such that the nuclear facilities can operate reliably while meeting commitments.

Upon completion of the systems identified in Attachment B, Peach Bottom Atomic Power Station, Units 2 and 3, and Limerick Generating Station, Units 1 and 2 will be "Y2K Ready."

Significant effort has been expended to identify components and systems subject to Y2K concems at the nuclear facilities. In the unlikely event that further open items are identified between the date of this response and December 31,1999, these items will be remediated as necessary such that the components and systems are "Y2K Ready" by December 31,1999.

Appropriate contingency plans have been developed to mitigate the impact of Y2K-induced events at key rollover dates. These contingency plans will continue to be refined as the key rollover dates are approached. Key rollover dates are addressed through March,2000.

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', '. R3sponsa to GL 98-01, Supp.1 Page 2 This information constitutes a Year 2000 Readiness Disclosure l under the Year 2000 Information and Readiness Disclosure Act 1

Current processes will ensure that any future plant modifications that occur at Peach Bottom i Atomic Power Station, Units 2 and 3, and Limerick Generating Station, Units 1 and 2 will be performed such that the facilities remain "Y2K Ready."

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Responso to GL 98-01, Supp.1 Page 3 This information constitutes a Year 2000 Readiness Disclosure under the Year 2000 Information and Readiness Disclosure Act Attachment B (Listing of systems that need to be remediated to achieve year 2000 readiness such that the nuclear facilities can operate reliably while meeting commitments.)

SYSTEM DESCRIBE IMPACT PLANT C MP Tl Digital Feedwater Needed for continued plant Completion of outage PBAPS, Systcm operations. Work to be currently scheduled to Unit 3 performed during PBAPS, Unit 3 begin September 1999 outage.

3D Monicore Needed for startup and September 30,1999 PBAPS, continued long-term plant Units 2 & 3 operations.

Plant Monitoring Needed for startup and September 30,1999 LGS, System /3D continued long-term plant Unit 2 Monicore operations.

Turbine Vibration Required for the protection of Completion of outage PBAPS, Monitor the reactor feed pump and currently scheduled to Unit 3 turbine system. Work to be begin September 1999 performed during PBAPS, Unit 3

, outage.

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