ML20079K454
| ML20079K454 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 01/12/1984 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| REF-PT21-84-272-000 PT21-84-272, PT21-84-272-000, NUDOCS 8401240605 | |
| Download: ML20079K454 (2) | |
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p TENNESSEE VALLEY AUTHORITY CHATTANOOGA. TENNESSEE 374ot 400 Chestnut Street Tower II
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'JaSuary12, 1984 BLRD-50-438/82-26 BLRD-50-439/82-23 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 NUCLEAR PLANT UNITS 1 AND 2 - GOVERNOR LUBE OIL COOLER -
BLRD-50-438/82-26, BLRD-50-439/82 FINAL REPORT The subject deficiency was initially repoc: e ' to NRC-0IE Inspector R. V. Crlenjak on March 8,1982 in accordat. c "ith 10 CFR 50.55(e) as NCR BLN MEB 8202. This was followed by our ink-im reports dated April 6, June 14, and October 20, 1982 and April 6, 1983 Eaclosed is our final report. We consider 10 CFR Part 21 applicable to this deficiency.
If you have any questions concerning this matter, please get in touch with R. H. Shell at FTS 858-2688.
Very truly yours, TENNESSEE VALLEY AUTHORITY Q$
L. M. Mills, Manager Nuclear Licensing Enclosure cc:
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 Atlanta, Georgia 30339 34:y e,.V.i"'
hE F401240605 840112 PDR ADOCK 05000438 f!
S PDR i983-TVA SOTH ANNIVERSARY An Equal Opportunity Employer
ENCLOSURE e+.
g BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 GOVERNOR LUBE OIL COOLER NCR BLN MEB 8202 BLRD-50-438/82-26, BLRD-50-439/82-23 10 CFR 50.55(e)
FINAL REPORT Description of Deficiency A potential defect exists when the governor lube oil cooler on a standby diesel generstor is located above the maximum elevation of the piping between the coolers and the governor.
If the oil level in the governor is low, air could be trapped in the Lube Oil System. The diesel generators were supplied by Delaval, Incorporated (Delaval), Oakland, California.
This deficiency was reported to NRC-0IE, Washington, D.C., under 10 CFR 21 by Transamerica Delaval letter dated December 9,1981. The condition has been verified as a problem by Bellefonte field personnel. This deficiency does not apply to the Delaval supplied diesels at Hartsville and Phipps Bend Nuclear Plants.
Safety Implications If the oil level in the governor is low, air could be trapped in the lube oil system which could affect diesel starting reliability. Failure of the diesel generator to start when called upon could adversely affect safe plant operations.
Corrective Action TVA has relocated the lube oil coolers for the unit 1 and unit 2 diesels to a position below the governors.
To prevent recurrence, the drawing number (102367) of the drawing which shows the correct location of the external lube oil cooler has been added to the engine governce parts list by TDI. The route sheet (No.02-415,
- 01) for the governor assembly also gives the drawing number. Adding the l
drawing number to the parts list and route sheet will make the drawing available in the future to the worker who installs the cooler. Inspection l
will verify compliance.
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