ML20011A615

Interim Deficiency Rept Re Spare Woodward Governor Defective Droop Lever Spring,Initially Reported 810918.Spring Break Could Initiate Min Fuel Availability & Cause Shutdown.Final Rept by 811201

ML20011A615
Person / Time
Site:	Grand Gulf
Issue date:	10/19/1981
From:	Mcgaughy J MISSISSIPPI POWER & LIGHT CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
10CFR-050.55E, 10CFR-50.55E, AECM-81-411, NUDOCS 8110290185
Download: ML20011A615 (4)

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fj O Jb MISSISSIPPI Helping POWER &'Ql@(Uh%NY Build A1$ssessippt P. O. B O X 164 0. J AC K S O N, MIS SIS SIP PI 3 q 0 5 310C126 Al0 : 0 J^jj[jMG,7d',f" October 19, 1981 Office of Inspection & Enfcreement U. S. Nuclear Regulatory Commission vi f

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Region II gr ,f , ,g 101 Marietta Street, N.W. Oy  !

'd Suite 3100 gO 4(U' l-h*s{p -\

Atlanta, Georgia 00303 p o,,,g78g [

Attention: Mr. J. P. O'Reilly, Director h 7dyp,

Dear Mr. O'Reilly:

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SUBJECT:

Grand Gulf Nucle r Station

• Units 1 and 2 Docket Nos. 50-416/417 file 0260/15525/15526 PRD-81/37, Interim Report, Defective Spare Voodward Govarnor llPCS Dict.tl Generator AECM-81/411 l On September 18, 1981, Mis issippi Power & Light Company notified Mr. P.

A. Taylor, of your of fice, of a Potentially Reportable Deficiency (PRD) at the Grand Gulf Nuclear Station (GGNS) construction site. The deficiency concerns f the spare Woodward Governor for the HPCS Diesel Generator.

l Our investigation into this matter is continuing. Our Interim reperc is attached. We expect to provide our final report on or before December 1, 1981.

Yours truly,

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% / J. P. McGaughy, Jr.

ACP:dr ATTACHMENT cc: See page 2 e$7 P

S 1 I 8110290185 811019 PDR ADOCK 05000416 S PDR Member Middle South Utilities System

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.Mr. J. P. O'Reilly AECM-81/411 NRC Page 2 cc: Mr. N. L. Stampley Mr. R. B. McGehee Mr. T. B. Conner 1

Mr. Victor Stello, Director -

Office.of Inspection & Enforcement i

U. S. Nuclear Regulatory Commission Washington, D.C. 20555 Mr. G. B. Taylor South Miss. Electric Power Association '

P. O. Box 1589 Hattiesburg, MS 39401 1,

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bec: Dr. D. C. Gibbs Mr. J. Leatherman Mr. J. N. Ward Manager of BWR-6 Licensing tir. J. P. McGaughy, Jr. General Electric Company Mr. J. D. Heaton 175 Curtner Avenue Mr. R. S. Trickovic San Jose, Ca. 95125 Mr. J. W. Yelverton Mr. L. F. Dale Mr. C. K. McCoy Mr. T. H. Cloninger Mr. D. M. Houston Mr. R. A. Ambrosino U. S. Nuclear Regulatory Commission Mr. R. C. Fron Division of Licensing Mr. G. B. Rogers Washington, D. C. 20555 Mr. S. H. Hobbs Mr. L. E. Ruhland Mr. D. L. Hunt Mr. J. Matore Mr. A. G. Wagner U. S. Nuclear Regulatory Commission Mr. P. A. Taylor Division of Licensing PRD File Washington, D. C. 20555 File Mr. Bruce J. Cochran Cochran Consulting Company P.O. Box 970503 Tampa, Florida 33688

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ATTACHM NT TO~AECM-81/411 P gs;l cf 1 o

INTERIM REPORT FOR PRD-81/37 I. Description of the Deficiency The Woodward Governor Company, . manufacturer of the spare governor (Part No. 8240-410) for the.HPCS: diesel generator, advised Power. Systems (division of Morrison-Knudsen) of a possibly defective droop lever spring (Part No. 1540-523) in this governor. This spring ~ is part of t a manufacturing lot which is suspected to have been improperly stress relieved. EPower Systems subsequently notified General Electric of the condition.

If this droop lever spring were to break, the governor would cause an indication of minimum availability of fuel to the diesel engine. ' This would .cause a shutdown of the-diesel generator, thereby reducing the capability of safely shutting down he plant.

II. Approach to Resolution of the Problem "

MP&L is continuing to investigate the use of the governor on the HPCS-diesel generator at Grand Gulf. To date the determination has not been made that the specified governor has been received, installed or used. MP&L is pursuing this matter with both the Architect / Engineer and.NSSS supplier.

III. Status of Proposed Resolution

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As previously stated, this matter remains under investigation by General Electric, and MP&L Project Engineering.

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IV. Reason Why Final Report Will Le Delayed i Our final report will be delayed until Project Engineering determines (

the applicability of the problem to Grand Gulf.- '

V. Date When Final Report Will Be Submitted

We expect to submit our final report on this deficiency on or before December 1, 1981.

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