ML20100L835
| ML20100L835 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 11/30/1984 |
| From: | Hufham J TENNESSEE VALLEY AUTHORITY |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| NUDOCS 8412120101 | |
| Download: ML20100L835 (2) | |
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TENNESSEE VALLEY, AUThiORITY
.n.i CHATTANOqtGA. TENNESSEE 374C3]f, 1630 Chestnut Street Tower II
'Novembeg,g4 BLRD-50-438/84-21 BLRD-50-439/84-20 U.S. Nuclear Regulatory Commission Region II Attn:
Mr. James P. O'Reilly, Regional Administrator 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323
Dear Mr. O'Reilly:
BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 - 3NCORRECT INSULATION WEIGHTS FOR INTAKE PUMPING STATION PIPING -BLRD-50-438/84-21 AND BLRD-50-439/84 SECOND INTERIM REPORT The subject deficiency was initially reported to NRC-0IE Inspector Ross Butcher on February 21, 1984 in accordance with 10 CFR 50.55(e) as NCR BLN BLP 8405. This was followed by our interim report dated March 19, 1984.
Enclosed is our second interim report. We expect to submit our next report on or about August 15, 1985.
If you have any questions, please get in touch with R. H. Shell at FTS 858-2688.
Very truly yours, TENNESSEE VALLEY AUTHORITY N..(
' M Manager J. W. H'u a
L ensi ant Regulations 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 Atlanta, Georgia 30339 i
8412120101 841130 ypy}ql AL COPY PDR ADOCK 05000438
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An Equal Opportunity Employer I
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ENCLOSURE BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 INCORRECT INSULATION WEIGHTS FOR INTAKE PUMPING STATION PIPING BLRD-50-438/84-21, BLRD-50-439/84-20 10 CFR 50.55(e)
NCR BLN BLP 8405 SECOND INTERIM REPORT Description of Deficiency During a review of the applicable insulation and modes analysis data for the essential raw cooling water (E3CW) system in the intake pumping station (IPS),
it was determined that certain insulation weights were in error. Further investigation revealed that documented design calculations for determining the actual insulation weights for some pipe sizes did not exist.
Interim Progress TVA has completed the performance and documentation of insulation weight calculations for the ERCW system in the IPS. Revised insulation and mode analysis data has been issued per engineering change notice 2919. Piping analysis work based on this nevised data is still in progress.
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