ML20127M100
| ML20127M100 | |
| Person / Time | |
|---|---|
| Site: | Seabrook  |
| Issue date: | 04/23/1985 |
| From: | Devincentis J PUBLIC SERVICE CO. OF NEW HAMPSHIRE |
| To: | Starostecki R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| 79--4, 79-00-04, SBN-794, NUDOCS 8505230179 | |
| Download: ML20127M100 (3) | |
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- a M SEABROOK STATION Engineering Office Pubec Service of New Hampshbe April 23, 1985 New Hampshire Yankee Olh SBN-794 United States Nuclear Regulatory Commission T.F. Q2.2.2 Region I 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) Telecon, November 8, 1979, Stewart Ebneter (NRC) and David Maidrand (YAEC)
(c) Westinghouse Letter No. NS-TMA-2150, dated November 7,1979, to Victor Stello, Jr. (NRC)
(d) Public Service Company of New Hampshire Letter No. SBN-108, dated December 6, 1979, to Region I, NRC (e) Westinghouee Letter No. NS-TMA-2204, dated February 15, 1980, to Victor Stello, Jr. (NRC)
(f) Public Service Company of New Hampshire Letter No. SBN-120, dated May 15, 1980, to Region I, NRC (g) Westinghouse Letter No. NS-NRC-85-3024, dated March 22, 1985, to James M. Taylor (NRC)
(h)-Westinghouse Letter No. NAH-2658, dated March 27, 1985, to R. J. DeLoach (YAEC)
Subject:
Interim 10CFR50.55(e) Report; Potential Undetectable Failure in the Engineered Safety Features Actuation System
Dear Sir:
In Reference (g), Westinghouse notified the NRC of a potential 10CFR50.55(e) 6eficiency on an undetectable failure in the Engineered Safety Features Actuation System. This deficiency was a problem with the Westinghouse hardware change which was part of the corrective action for a previously reported 10CFR50.55(e) on the same subject. The NRC Construction Deficiency Report number assigned to this original 10CFR50.55(e) is 79-00-04.
Seabrook will not be reporting this new item as a new 10CFR50.55(e) deficiency, as explained below.
References (b), (c), (d), (e), and (f) documented a 10CFR50.55(e) deficiency on an undetectable f ailure in the Engineered Safety Features Actuation System (P-4 interlock) at Seabrook Station. The corrective action committed to in Reference (f) was to implement the Westinghouse recommended procedures in Reference (e). These procedures required entry into the reactor trip switchgear with portable test met'ers to verify correct operation of the P-4 interlock contacts.
8505230179 850423 PDR ADOCK 05000443 S
PDR P.O. Box 300 Seobrook. NH O3874. Telephone (603)474-9521
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- bUnited'StatesNuclearRegulatory. Commission Attention:
Mr.'. Richard W.Starostecki Page 2
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- In our response to RAI 420.74,:we' committed to installing permanent test
, switches and meters -for; implementing the: procedures specified in Reference (e)..
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-During our' review of the. Westinghouse field change documentation to implement
- the2 permanent hardware, we determined that the design would not adequately perform the measurements required to1 implement the' procedures. This concern was; brought'to Westinghouse's attention.
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Weskinghouse'reviewedourLeoncernandconfirmedthattherewasaproblem with the. design.. Westinghouse notified the NRC'of. the problem in' Reference (g) and indicated. that :it" was.a 10CFR50.55(e) deficiency.. Since we discovered -
'this. problem during our review of. the design change, which was part of _ the
. corrective = action of_our initial 10CFR50.55(e) deficiency,;we do not consider this ites reportable as a new deficiency.'
- Westinghouse has indicated in Reference (h) that they.will supply.a revised design and hardware which.will adequately implement the required
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(procedures.- We will, notify-you when this revised design has been implemented..
- Very truly' yo rs, p
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.i J. DeVincentis, Director Engineering-and= Licensing
~cc: Atomic ^ Safety, and Licensing Board Service. List.:
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- William S. Jordan, III Donald E. Chick
' Diane Curran-
' Town Manager Harmon, Weiss & Jordan Town of Exeter
- 20001 S. Street,LN.W.
10 Front Street
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Suite 430 Exeter, NH 03833
~ Washington, D.C..
20009 Brentwood Board of Selectmen Robert G.-Perlis RED Dalton Road
~ Office of the' Executive Legal Director Brentwood, NH 03833 U.S. Nuclear ~ Regulatory Commission-Washington, DC 20555 Richard E.- Sullivan, Mayor City Hall Robert-A. Backus, Esquire-
. Newburyport,10( 01950 116 LowellLStreet-P.O. Box 516 Calvin A.-Canney Manchester, NH.03105 City Manager City Hall Philip Ahrens, Esquire 126 Daniel Street-
- Assistant Attorney General Portsmouth,' NH 03801 Augusta,-ME.'04333 Dana Bisbee, Esquire Mr.-John B.'Tanzer Assistant Attorney General Designated Representative of Office of the, Attorney General Lthe Town of Hampton 208 State House Annex 5 Morningside Drive' Concord.. )ni :,03301 Hampton,;NH 03842 Anne Verge,' Chairperson Roberta C. Pevear Board of Selectmen 1 Designated -Representative of:
Town Hall 1the. Town of Hampton Falls South Hampton, NH 03842'
_DrinkwatercRoad LHampton 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 Boston, MA 02108 Newbury, MA 01950 P
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-
'l Pillsbury Street 70_ Collins Street-Concord, NH 03301 Seabrook, NH- 03874 (ATTN: Herb Boynton) i 4
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