ML20116B634

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First Interim Deficiency & Part 21 Rept Re Cracked Welds on Tdi Diesel Generator Turbochargers.Initially Reported on 850318.Deficiency Under Evaluation.Next Rept Anticipated on or About 850715
ML20116B634
Person / Time
Site: Bellefonte  
Issue date: 04/12/1985
From: Hufham J
TENNESSEE VALLEY AUTHORITY
To: Grace J
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
REF-PT21-85, REF-PT21-85-197-000 PT21-85-197, PT21-85-197-000, NUDOCS 8504260033
Download: ML20116B634 (2)


Text

d TENNESSEE VALLEY AUTHORITY C6' ATTANOOGA TENNESSEE 37401 400 Chestnut Street Tower II 15 APMin lg, *.,gI -

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BLRD-50438/85-10 BLRD-50439/85-10 U.S. Nuclear Regulatory Commission Region II Attn:

Dr. J. Nelson Grace, Regional Adninistrator 101 Marietta Street, NW, Suite 2900 Atlanta, Georgta 30323

Dear Dr. Grace:

BELLEFWTE NUCLEAR PLANT' WITS 1 AND 2 - CRACKED ELIE W TDI DIESEL GEERATOR TURB001ARERS - BLRD-50438/85-10 AND BLRD-50439/85 FIRST INTERIM EPORT The sub;)ect deficiency was initially reported to NRC-0IE Inspector Al Ignatonis on March 18, 1985 in accordance with 10 TR 50.55(e) as NCR 4028. Enclosed is our first interim report. We expect to subnit our next report on or about July 15, 1985. We consider 10 TR Part 21 applicable to this deficiency.

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

Very truly yours,

TENNESSEE VALLEY AUTHORITY

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d. W. Huf ham, Mamger Licensing and Regulations Enclosure cc (Enclosure):

Mr. James Taylor, Director Office of Inspection and Enforcement U.S. Nuclear Regulatory Cmmission Washington, D.C.

20555 Records Center Institute of Nuclear Power Operations 1100 Circle 75 Parkway, Suite 1500 Atlanta, Georgla 30339 8504260033 850412 b

PDR ADOCK 05000438 fe 47 ar.

ENCLTURE BELLEFWTE NUCLEAR PLANT UNITS 1 AND 2 CRACED WELE W TDI DIESEL ERATOR TURB0mARTRS BLRD-50-438/85-10 AND BLRD-50-439/85-10 NCR 4028 10 TR 50.55(e)

FIRST INTERIM REPORT Desc ription of De ',

Upon the recommendation of the TDI Diesel Generator Owners Group, W A implenented an extensive inspection and maintenance program that revealed cracks in components that would not ordinarily require inspection.

Turbochargers installed on standby diesel generators 1A and 1B had cracks in the four 3/4-inch-long tack welds which attach the core pits to the turbine

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Interim Progress W A is presently evaluating the deficiency.

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