ML20099L233

Submits Results of Survey to Determine Extent of Missing Washers on Wedge Bolts,Per Initial 840330 Response to Insp Repts 50-438/84-03 & 50-439/84-03.QC Procedure Re Bolt Anchors Set in Concrete Revised

ML20099L233
Person / Time
Site:	Bellefonte
Issue date:	08/03/1984
From:	Mills L TENNESSEE VALLEY AUTHORITY
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
NUDOCS 8412010058
Download: ML20099L233 (2)

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• TENNESSEE .VALL.EY; AUTHORITY

,l CHATTANOOGA. TENNESSEE' 374o1; 400 Chestnut Street Tower II D 1 AQ;fy August 3,-1984 U.S. Nuclear Regulatory Connission Region II Attn: Mr. James P. O'Reilly, Regional Administrator $

101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323 h-

Dear Mr. O'Reilly:

BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 - SUPPLEMENTAL RESPONSE TO VIOLATION 438/84-03-01, 50-439/84-03 FAILURE TO FOLLOW PROCEDURES FOR CONCRETE EXPANSION ANCHOR BOLTS AND PIPE SUPPORT INSPECTIONS TVA's initial response to R. C. Lewis' letter dated February 29,-1984, report numbers 50-438/84-03, 50-439/84-03 concerning activities at the Bellefonte Nuclear Plant which appeared to have been in violation of NRC regulations was submitted on March 30, 1984. In that response, TVA indicated that the results of a survey to determine the extent of the missing washers on wedge bolts would be submitted upon its completion.

Below is this supplemental information.

A random sampling was taken of all sizes of wedge bolts installed from February 1980 to the present. A total of 86 pipe supports were selected for investigation of missing washers. These supports contained a total of 289 bolts with 9 bolts failing to have washers. Nonconformance Condition Report (NCR) 2833 was prepared to identify missing washers on wedge bolts.

The subject NCR was returned by TVA Engineering Design (EN DES) with a recommended corrective action to use-as-is. NCR 2833 has been closed.

Bellefonte Quality Control procedure (BNP-QCP) 2.8, " Bolt Anchors Set in Hardened Concrete," has been revised to ir.clude the requirement for wedge bolt washers as acceptance criteria.

8412010058 840803 gDRADOCK 05000438 PDR OFFICIAL COPY An Equal Opportunity Employer fg I

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J' V -2 l U.S. Nuclear Regulatory Comission August 3, 1984 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 0 5W L. M.~ Mills, Manager Nuclear Licensing cc: Mr. Richard C. DeYoung, Director Office of Inspection and Enforcement U.S. Nuclear Regulatory Comission Washington, D.C. 20555 Records Center Institute of Nuclear Power Operations 1100 Circle 75 Parkway, Suite 1500 Atlanta, Georgia 30339 I

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