ML20097F255

Forwards Rev 0 to GL 95-07, Pressure Locking & Thermal Binding of Power-Operated Gate Valves

ML20097F255
Person / Time
Site:	Seabrook
Issue date:	02/13/1996
From:	Dacimo F NORTH ATLANTIC ENERGY SERVICE CORP. (NAESCO)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20097F257	List: ML20097F255 ML20097F259
References
GL-95-07, GL-95-7, NYN-96007, NUDOCS 9602150370
Download: ML20097F255 (3)

Text

,

l I

W%,

North North Atlantic Energy Service Corporation  !

s P.O. Box 300 0

$y Atlantic Seah,oot. ui103m4 (603) 474-9521 The Northeast Utilities System l NYN-96007 February 13,1996 United States Regulatory Commission Washington, D.C. 20555 Attention: Document Control Desk

Reference:

(a) Facility Operating License No. NPF-86, Docket No. 50-443

(b) NRC Generic Letter 95-07, dated August 17,1995," Pressure Locking and t Thermal Binding of Safety Related Power -Operated Gate Valves" ,

(c) North Atlantic Letter, NYN-95080, dated October 13,1995," Response to j Generic Letter 95-07", T.C. Feigenbaum to NRC

Subject:

180-Day Response to Generic Letter 95-07 Gentlemen:

North Atlantic Energy Service Corporation (North Atlantic) committed in letter NYN-95080,

[ Reference (c)] to complete, within 180-days of issuance of GL 95-07 or February 13,1996, the actions required to address the guidance provided in Attachment 1 of Generic Letter (GL) 95-07, [ Reference (b)].

Attachment I to GL 95-07 requests that utilities take the following actions:

1. Evaluate the oper:tional configurations of safety related power-operated (i.e., motor-operated, air-operated, and hydraulically operated) gate valves in their plants to identify valves that are susceptible to pressure locking or thermal binding;

2. Perform further analyses as appropriate and take needed corrective actions to ensure that the susceptible valves identified in Action 1 above, are capable of performing their intended safety functions under all modes of plant operations, including test configuration.

Enclosed is the North Atlantic response to Generic Letter 95-07. North Atlantic has completed the necessary actions as documented in Engineering Evaluation 95-07 to comply with the requirements of Generic Letter 95-07.

160013 g 9602150370 9602t3 PDR ADOCK 05000443 \s p PDR i. \

l Uriited States Nuclear Regulatory Commission February 13,1996 Attention: Document Control Desk Pagetwo y Should you have any questions regarding this response, please contact Mr. Anthony M.

Callendrello, Licensing Manager, at (603) 474-9521, extension 2751.  ;

Very truly yours,  :

O 1

w Vw Fred R. Dacimo  ;

Vice President - Nuclear Operations

- FRDfrGP:sm ,

Enclosure cc: Mr. Thomas T. Martin Regional Administrator U.S. Nuclear Regulatory Commission Region 1 475 Allendale Road King of Prussia, PA 19406 ,

r Mr. Albert W. De Agazio, Sr. Project Manager Project Directorate 1-4 Division of Reactor Projects U.S. Nuclear Regulatory Commission Washington, DC 20555 Mr. John B. Macdonald

, NRC Senior Resident Inspector P.O. Box 1149 Seabrook, Nil 03874 Subscribed and sworn to before me  !

this /3 day of ((nu <% ,1996

$1Ah n. . D Date Commission Expires: lk'3tk,'Ocv(

~

d

1 1

North Atlantic I February 13,1996 i

l l

ENCLOSURE I TO NYN-96902 l i

l l