ML20093A462

Informs That Deactivation & Subsequent Removal of RHR Svc Water Solenoid Valves 2E11-F201A-D Will Not Be Performed During Current Maint/Refueling Outage.Design Change Removed from Inservice Insp Program Due to Safety Constraints

ML20093A462
Person / Time
Site:	Hatch
Issue date:	07/02/1984
From:	Gucwa L GEORGIA POWER CO.
To:	Stolz J Office of Nuclear Reactor Regulation
References
NED-84-335, TAC-11260, TAC-11261, NUDOCS 8407100530
Download: ML20093A462 (2)

Text

's Georgia Power Cornpaq

1. 333 Pejrnont Avenue Atlanta, Georg a 30308 Telephone 404 52&6526 MaAng Address-Post Ofice Box 4545 At:anta. Georgta 30302 Georgia Power L T. Gucwa the snutr em eurtrc system Manager Nuclear Eng:neering and chief f4uclear Engineer NED-84-335 July 2, 1984 Director of Nuclear Reactor Regulation Attention: Mr. John F. Stolz, Chief Operating Reactors Branch No. 4 Division of Licensing 1 U. S. Nuclear Regulatory Canunission Washington, D. C. 20555 NRC DOCKET 50-366 '

OPERATING LICENSE NPF-5 EDWIN I. HA'ICH NUCLEAR PLANT UNIT 2 INSERVICE TESTING - RHk SERVICE WA'IER SOLENOID VALVES Gentlemen:

In the Inservice Inspection Program subnitted to NRC by letter dated August 12, 1983, Georgia Power Cmpany indicated that Hatch Unit 2 RHR Service Water valves 2 Ell-F201A-D would eventually be renoved during a future outage. Further, it was indicated that in the interim, power would be renoved and the valves left in the open position. These actions were to be taken to preclude the necessity of stroke-timing the valves in accordance with ASME Section XI inservice testing requirements. Because the valves are 1-inch sealed solenoid valves actuated by the RHR Service Water Ptunp motors, and have no position indication, stroke-timing is impractical. This letter is to- inform you that deactivation and subsequent removal of RHR Service Water solenoid valves 2 Ell-F201A-D will not be performed during the current Hatch Unit 2 maintenance / refueling outage for reasons discussed herein.

A design change was written to renove the subject valves during the current outage, but due to certain constraints, it has been deleted fran the outage scope. In addition, deactivation of the valves is impractical as they connect directly to the main RHR Service Water piping and would drain a substantial. portion of that piping if the valves were deactivated and lef t

-in the open position. This drainage would result in a water hanner to the RHR heat exchangers when a RHR Service Water ptrnp motor is started.

Consequently, the valves will not be renoved until such time that the design change can be implenented.

8407100530 840702 gDRADOCK 05000366 PDR 0 4

o o

Georgia Power b Director of Nuclear Reactor Regulation i Attention: Mr. John F. Stolz, Chief ,

Operating Reactors Branch No. 4  ;

July 2, 1984 Page Two Should you have any questions in this regard, please contact this office.

Sincerely yours, f.[ A: 1- 2 L. T. Gucwa JAE/inb xc: J. T. Beckhm , Jr.

H. C. Nix, Jr.

J. P. O'Reilly (NRC- Region II)

Senior Resident Inspector rwns