ML20081C017

First Interim Deficiency Rept Re Loose Drive Hubs on Overspeed Governor Drive Shaft on Transamerica Delaval,Inc Diesels.Initially Reported on 840203.Svc Info Memo Being Reviewed for Approval.Also Reportable Per Part 21

ML20081C017
Person / Time
Site:	Bellefonte, 05000000, Hartsville
Issue date:	03/01/1984
From:	Mills L TENNESSEE VALLEY AUTHORITY
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
REF-PT21-84 NUDOCS 8403120105
Download: ML20081C017 (2)

Text

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TENNESSEE VALLEY AUTHORITY CH ATTANOOGA, TENN ESSEE 37401 400 Chestnut Staeet Tower II 84 MAR 8 P par &3 '984 BLRD-50-438/84-15, HTRD-50-518/84-01 BLRD-50-439/84-14, HTRD-50-520/84-01 U.S. Nuclear Regulatory Commission Region II Attn: Mr. James P. O'Reilly, Regional Administrator 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30303

Dear Mr. O'Reilly:

BELLEFONTE AND HARTSVILLE NUCLEAR PLANTS UNITS 1 AND 2 - LOOSE DRIVE HUBS ON OVERSPEED GOVERNOR DRIVE SHAFT ON DELAVAL DIESELS -BLRD-50-438/84-15, BLRD-50-439/84-14, HTRD-50-518/84-01, HTRD-50-520/84-01 FIRST INTERIM REPORT The subject deficiency was initially reported to NRC-0IE Inspector P. E. Fredrickson February 3,1984 in accordance with 10 CFR 50.55(e) as NCRs BLN MEB 8401 and HTA MEB 8401. Enclosed is our first interim report.

We expect to submit our next report by August 3,1984. We consider 10 CFR Part 21 applicable to this deficiency.

TVA has elected to defer construction activities on Hartsville. Deferral does not mean that the project will be cancelled but that TVA is minimizing its expenditures and construction efforts until such time that TVA has sufficient information to indicate whether the project should be completed or cancelled. Therefore, we will not be submitting further information on Hartsville until a final decision is made regarding this project.

If you have any questions, please get in touch with R. H. Shell at FTS 858-2688.

Very truly yours, TENNESSEE VALLEY AUTHORITY 8403120105 840301 .

gDRADOCK 05000438 L. M. Mills, Manager PDR Nuclear Licensing Enclosure oc: Mr. Richard C. DeYoung, Director (Enclosure)

Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Records Center (Enclosure) '

Institute of Nuclear Power Operations ,

1100 Circle 75 Parkway, Suite 1500 OFFICI AL COI"i Atlanta, Georgia 30339 1/27 1983-TVA 5OTH ANNIVERSARY Il An Equal Opportunity Employer

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ENCLOSURE BELLEFONTE AND HARISVILLE NUCLEAR PLANTS UNITS 1 AND 2 LOOSE DRIVE HUBS ON OVERSPEED GOVERNOR DRIVE SHAFT ON DELAVAL DIESELS BLRD-50-438/84-15, BLRD-50-439/84-14 HTRD-50-518/84-01, HTRD-50-520/84-01 NCRs BLN MEB 8401 AND HTA MEB 8401 10 CFR 50.55(e)

FIRST INTERIM REPORT Description of Deficiency Recently, on a non-nuclear commercial engine installation, Transamerica Delaval, Incorporated (TDI), of Oakland, California, discovered the flexible coupling drive bubs were loose on the shafts in the overspeed governor fuel transfer pump drive. This design has been used for many years and similar problems have not been reported.

These bubs are manufactured by Levejoy Coupling and installed by TDI.

In acccrdance with the requirements of 10 CFR 21, TDI notified the NRC of this potential defect in a component of a DSR or DSRV standby diesel generator in their letter to the Director of the Office of Inspection and Enforcement dated Janury 9,1984.

Interim Progress TVA has received a service information memorandum (SIM) from TDI dated

-January 23, 1984. This SIM is being reviewed for approval by TVA fu use by TVA field personnel in checking for loose hubs in the overspeed governor / fuel booster pump drive ~ coupling.

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