ML20137R190

Interim Part 21 & Deficiency Rept (CDR 85-00-12) Re Gt Strudl Computer Program Error.Initially Reported on 850916. Evaluation of 25 Sample Runs Discovered No Impact.Generic Evalution in Process.Final Rept Expected by 860115

ML20137R190
Person / Time
Site:	Seabrook
Issue date:	11/15/1985
From:	Devincentis J PUBLIC SERVICE CO. OF NEW HAMPSHIRE
To:	Starostecki R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
REF-PT21-86-055-000 (CDR-85--12), (CDR-85-00-12), PT21-86-055-000, PT21-86-55, SBN-896, NUDOCS 8512050446
Download: ML20137R190 (2)

Text

y v s Ssabrook Station Engineering Offico ,

l November 15, 1985 SBN- 896 New Hampshire Yankee Division USNRC Region 1 631. Park Avenue King of Prussia, PA 19406 Attention: Mr. Richard W. Starostecki, Director Division of Project and Resident Programs

References:

(a) Construction Permits CPPR-135 and CPPR-136, Docket Nos. 50-443 and 50-444 (b) PSNH Letter SBN-870 dated September 16, 1985,

" Interim 10CFR50.55(e) Report; GT STRUDL Com-puter Program Error", John DeVincentis to R. W.

Starostecki

Subject:

Interim 10CFR50.55(e); Report; GT STRUDL Computer Program Error (CDR 85-00-12)

Dear Sir:

Y On September 16, 1985, we committed to provide a followup report on our analys'is of the potential deficiency caused by an error in the GT STRUDL computer program.

We have completed our evaluation of a sample 25 computer runs poten-tially effected by this error. The recults of this evaluation indicate that these 25 support designs are not impacted by this error.

We are in the process of completing a genetic evaluation of this problem for all other potentially effected support designs. In addition, a larger sample of support designs is being specifically evaluated to further confirm our evaluation.

, We expect these items will be completed and a final report issued by January 15, 1986.

Very truly yours, 0512050446 851115 PDR ADOCK 05000443 hn DeVincentis, Director S PDR ngineering and Licensing cc: Atomic Safety and Licensing Board Service List

Director;, Office of Inspection and Enforcement

! U. S. Nuclear Regulatory Commission Washington, DC 20555

, I 'd Seabrook,NH 03874 Seabrook Station Construction Field Office + P.O. Box 700

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b l Donald E. Chick l -William S. Jordan, III Diane Curran Town Manager Harmon, Weiss & Jordan Town of Exeter 20001 S. Street, N.W. 10 Front Street Suite 430 Exeter, NH 03833 Washington, D.C. 2000)

Brentwood Board of Selectmen Robert G. Perlis RED Dalton Road Office of the Executive Legal Director Brentwood, NH 03833 U.S. Nuclear Regulatcry Commission Washington, DC 20555 Richard E. Sullivan, Mayor City Hall Robert A. Backus, Esquire Newburyport, MA 01950 116 Lowell Street P.O. Box 516 Calvin A. Canney Manc he ste r, NH 03105 City Manager City Hall Philip Ahrens, Esquire 126 Daniel Street Assistant Attorney General Portsmouth, NH 02801 Au3usta, ME 04333 Dana Bisbee, Esquire Mr. John B. Tanzer Assistant Attorney. General Designated Representative of Office of the Attorney General the-Town of Hampton 208 State House Annex 5 Morningside' Drive Concord, NH 03301 Hampton, NH 03842 Anne Verge, Chairperson Roberta C. Fevear Board of Selectmen Designated Representative of Town Hall the Town of Hampton Falls South Hampton, NH 03827 Drinkwater Road Hampton Falls, NH 03844 Patrick J. McKeon Selectmen's Office Mrs. Sandra Gavutis 10 Central Road Designated Representative of Rye, NH 03870 the Town of Kensington RFD 1 Carole F. Kagan, Esquire East Kingston, NH 03827 Atomic Safety and Licensing Board Panel U.S. Nuclear Regulatory Commission Jo Ann Shotwell, Esquire Washington, DC 20555 Assistant Attorney General Environmental Protection Bureau Mr. Angi Machiros Department of the Attorney General Chairman of the Board of Selectmen One Ashburton Place, 19th Floor Town of Newbury i Boston, MA 02108 Newbury, MA 01950 Senator Gordon J. Humphrey Town Manager's Office U.S. Senate Town Hall - Friend Street Washington, DC 20510 Amesbury, MA 01913 (ATTN: Tom Burack)

Senator Gordon J. Humphrey Diana P. Randall 1 Pillsbury Street 70 Collins Street Concord, NH 03301 Seabrook, NH 03874 -(ATTN: Herb Boynton) l

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