ML20204F906

Amended Part 21 Rept 138 Re Potential Problem W/Static Exciter Voltage Regulator Reset Design.Initially Reported on 870311.Similar Equipment Delivered to Listed Sites.Generic Info Will Be Provided by 870331

ML20204F906
Person / Time
Site:	Vogtle, 05000000, Washington Public Power Supply System
Issue date:	03/18/1987
From:	Guntrum B IMO DELAVAL, INC., TRANSAMERICA DELAVAL, INC.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE)
References
REF-PT21-87, REF-PT21-87-060-000 138, PT21-87-060-000, PT21-87-60, NUDOCS 8703260298
Download: ML20204F906 (2)

Text

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. og Imo Delaval Inc.

Enterpri.e Engine Disl:lon EnterprLw Way and 85th Awnue D Oakland, CA 91621 l'. O, llox 2161 415-577-7400 March 18, 1987 Report #138 Director, Office of Inspection and Enforcement US Nuclear Regulatory Commission Washington, DC 20553

Dear Sir,

This letter is intended to amend our March 11, 1987 report to you relative to a potential problem with the static exciter voltage regulator reset design provided as a part of a DSR and DSRV standby diesel generator.

Upon further examination, we find similar equipment was also delivered to the following sites:

UTILITY SITE SERIAL NO. MODEL Washington Public Power WPPSS I 75084/85 DSRV-16-4 Georgia Power Vogtle 76021/24 DSRV-16-4 While this potential problem was originally identified at Georgia Power Vogtle Plant, it is our understanding that Georgia Power has already implemented corrective action.

Since the control circuitry of each site is designed differently, any modifications must be engineered independently and in conjunction with the uite engineering staff. Generic information will be provided by March 31, 1987. Completion time for the specific site engineering effort cannot be established as action is required by others and is beyond the control of IMO Delaval.

y Sincerely, I

e Bruce C. Guntrum Manager Quality Assurance BCG/dfc G703260298 DR 070219 ADOCK 0500G397 D PDR

'h o

Page 2 March 18, 1987 US: Nuclear Regulatory Commission cc: Carolina Power & Light Co.

Shearon Harris Nuclear Plants P.O. Box'101 New Hill,, North Carolina 27562 Attn: Mr. R.A. Watson, Vice President Mr. L.I. Leflin, Mgr.

Harris Plant Engineering Mr. N.J. Chiangi Manager, O.A.

Tennessee Valley Authority - Bellefonte W7C126, 400 West Summit Hill Drive Knoxville, Tennessee 37902 Attn': Mr. I.L. Beltz Sacramento Municipal Utility District P.O. Box 15830 Sacramento, CA 95813 Attn: Mr. Cranston Nuclear Engineering Dept., M.S. 208 J.R. Beal Purchasing Dept. M.S. 50 Washington Public Power Supply System Post Office Box 460 Richland, WA 99352 Attn: Mr. G.K. Dyekman Acting Asst. Program Director Georgia Power Company Plant Vogtle P.O. Box 282 Waynesboro, Georgia 30830 Attn: Mr. George Bockhold, Jr.

Plant Manager