ML20033B913
| ML20033B913 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 11/20/1981 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, NUDOCS 8112020439 | |
| Download: ML20033B913 (2) | |
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TENNESSEE VALLEY AUTHORITY CH ATTANOOG A. TENNESSEE 374ot 400 Chestnut Street Tower II November 20, 1981 BLRD-50-439/81-23 Mr James P. O'Reilly, Directue Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Region II 9uite 3100 101 Marietta Street Atlanta, Georgia 30303
Dear Mr. O'Reilly:
BELLEFONTE NUCLEAR PLANT UNIT 2 - LACK OF REBAR AT MAIN STEAM FLUED HEAD -
BLRD-50-439/81 FOURTH INTERIM REPORT The subject deficiency was initially reported to NRC-0IE Inspector J. Crlenjak on February 27, 1981, in accordance with 10 CFR 50.55(e) as NCR 1390. This was followed by our interim reports dated March 31, June 3, and August 31, 1981. Enclosed is our fourth interim report. We expect to submit our next report by February 24, 1982.
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, Manager Nuclear Regulation and Safety Enclosure cc:
Mr. Victor Stello, Jr., Director (Enclosure) s h, { ( 3 Office of Inspection and Enforcement 4
U.S. Nuclear Regulatory Commission hL6 Y
I Washington, DC 20555 z?
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--Q ENCLOSURE BELLEFONTE NUCLEAR PLANT UNIT 2 LACK OF REBAR AT MAIN STEAM FLUED HEAD BLRD-50-439/81-23 10 CFR 50.55(e)
FOURTH INTERIM REPORT
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Description of Deficiency The discrepancy was discovered while chipping concrete, in accordance with disposition )f NCR 1308, to deter mine the locations of steel reinforcing bars at the main steam flued heaa cupports. Chipping revealed that these g
bars are not present between said supports. Additionally, it was discovered that additional reinforcing bars which should lace between the
- anchor plate support bars were cut off below the supports. After chipping further, it was found tnat the reinforcing descrioed above is missing for all anchors in valve room A for both units 1 and 2.
Interim Progress Upon reviewing the design, nonconformance report (NCR) BLN BLP 8120 was written against the design calculations. Vertical stiffening walls are being designed to resist the applied anchor loads, taking into account the missing rebar. NCR 1390 will be dispositioned after NCE BLN BLP 8120.
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