ML20080J318
| ML20080J318 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 09/20/1983 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| REF-PT21-83 10CFR-050.55E, 10CFR-50.55E, NUDOCS 8309260316 | |
| Download: ML20080J318 (2) | |
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September 20,19 BLRD-50-438/83-19 BLRD-50-439/83-15 U.S. Nuclear Regulatory Comission 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 - PRESSURE DROP ACROSS VELAN 2-1/2-INCH STOP/ CHECK VALVE - BLRD-50-438/83-19, BLRD-50-439/83 SECOND INTERIM REPORT The subject deficiency was initially reported to NRC"0IE Inspector A. K. Hardin on February 2, 1983 in accordance with 10 CFR 50.55(e) as NCR 2212. This was followed by our interim report dated March 3,1983 Enclosed is our second interim report. We expect to submit our next report by January 30, 1984. 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 L. M. Mills, nager Nuclear Licensing Enclosure oc:
Mr. Richard C. DeYoung, Director (Enclosure)
Office of Inspection and Enforcement U.S. Nuclear Regulatory Conmission Washington, D.C.
20555 Records Center (Enclosure)
Institute of Nuclear Power Operations 1100 Circle 75 Parkway, Suite 1500 Atlanta, Georgia 30339 tyt ((CIM Cb 8309260316 830920
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1983-TVA 50m ANNIVERSARY An Equal Opportunity Employer
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ENCLOSURE BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 PRESSURE DROP ACROSS VELAN 2-1/2-INCH STOP/ CHECK VALVE NCR 2212 BLRD-50-438/83-19, BLRD-50-439/83-15 10 CFR 50.55(e)
SECOND INTERIM REPORT Description of Deficiency During flushing operations of the makeup and purification (MU/P) and high 8
pressure injection (HPI) systems, seven of nine 2-1/2-inch 1500 lb. Velan stop/ check valves intermittently failed to fully open and/or have shown indication of excessive pressure drop.
Interim Progress A Velan site representative has reviewed the subject problem and has determined a probable cause which Velan will verify at their manufacturing facility. A proposed fix is presently being tested for applicability.
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