ML20148F072

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Third Interim Rept Re Diesel Generator Hydraulic Actuator Motors.Supplier Instructed Governor Valve Mfg to Test Governor Speed Control Motor.Next Rept Will Be Submitted by 781220
ML20148F072
Person / Time
Site: Sequoyah  Tennessee Valley Authority icon.png
Issue date: 10/05/1978
From: Gilleland J
TENNESSEE VALLEY AUTHORITY
To: James O'Reilly
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
NCR-855, NUDOCS 7811070276
Download: ML20148F072 (1)


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i TENNESSEE VALLEY AUTHORITY CH ATTANOOGA, TENNESSEE 374o1 830 Power Building 001 5 1978 Mr. James P. O'Reilly, Director g;

3 Office of Inspection and Enforcement a

r U.S. Nuclear Regulatory Commission c7 I

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Region II - Suite 3100 101 Marietta Street

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Atlanta, Georgia 30303 4

5 3>1

Dear Mr. O'Reilly:

c.n O.

SEQUOYAH NUCLEAR PLANT UNITS 1 AND 2 - DIESEL GENERATOR HYDWeULIC 3CTUATOR MOTORS - NCR 855 - THIRD INTERIM REPORT The subject condition was initially reported to NRC-01E Region II Inspector J. K. Rausch on March 16, 1978, and interim reports were submitted on April 19, 1978, and June 15, 1978.

TVA has been informed that the vendor of the diesel-generator units, Power System, Division of Morris-Knudson Company, Inc., has instructed the governor manufacturer, Woodward Governor Company, to conduct tests on an identical governor speed control motor.

These tests are to examine the effect of DC voltage variance on the governor speed control motor and establish its relation to the deficiency.

We will transmit our next report to your office by December 20, 1978.

If you have any questions concerning this matter, please get in touch with M. R. Wisenburg at FTS 854-2581.

l Very truly yours,.

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". J. E. G111 eland Assistant Manager of Power cc:

Mr. John G. Davis, Acting Director Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, DC 20555 l

781107 c> A7 4 L

l An Equal Opportunity Employer

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