ML20206P519

Responds to Severity Level IV Violation Noted in Insp Repts 50-438/86-09 & 50-439/86-09.Corrective Actions:Procurement QA Branch Inspectors Conducted Addl Training in Welding Insp.Future Insp Plans Will Address Welding Requirements

ML20206P519
Person / Time
Site:	Bellefonte
Issue date:	04/15/1987
From:	Domer J TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
NUDOCS 8704210204
Download: ML20206P519 (4)

Text

__.

o TENNESSEE VALLEY AUTHORITY

~

CHATTANOOGA. TENNESSEE 37401 SN 157B Lookout Placa APR 15198i U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555 Gentlemen:

BELLEFONTE NUCLEAR PLANT (BLN) UNITS 1 AND 2 - NRC REGION II INSPECTION REPORT NOS. 50-438/86-09 AND 50-439/86 RESPONSE TO VIOLATION Gary G. Zech's letter to S. A. White dated March 6, 1987, transmitted NRC Inspection Report Nos. 50-438/86-09 and 50-439/86-09 for Bellefonte Nuclear Plant. This report cited TVA with one violation; 50-438, 439/86-09-01, Severity Level IV. Our response to this violation is enclosed.

If you have any questions, please get in touch with D. L. Terrill at (205) 574-8820.

To the best of my knowledge, the statements contained herein are complete and true.

Very truly yours, TENNESSEE VALLEY AUTHORITY

.h. ppsg M J. A. Domer, Assistant Director Nuclear Safety and Licensing Enclosure cc: See page 2 i

og42kn$0k$50 jB k

An Equal Opportunity Employer

T a

l U.S. Nuclear Regulatory Comission h {g -

cc (Enclosure):

Mr. G. G. Zech, Assistant Director for Inspection Programs Division of TVA Projects Office of Special Projects .

U.S. Nuclear Regulatory Commission 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323 Bellefonte Resident Inspector Bellefonte Nuclear Plant P.O. Box 2000 Hollywood, Alabama 35752 l

l

ENCLOSURE BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 RESPONSE NRC REGION II INSPECTION REPORT NOS. 50-438/86-09 AND 50-439/86-09 CARY G. ZECH'S LETTER TO S. A. WHITE DATED MARCH 6, 1987 4

Violation 50-438. 439/86-09-01. " Failure to Control Purchase of Instrument Panels" 10 CFR 50, Appendix B, Criterion VII, and the accepted QA Program (TVA-TR-75-1A, Rev. 8) Section 17.1.A.7, requires in part that measures shall be established to assure that purchased material or equipment, whether purchased directly or through contractors and subcontractors, conform to the procurement documents. These measures shall include provisions, as appropriate, for source evaluation and selection, objective evidence of quality furnished by the contractor or subcontractor, inspection at the contractor or subcontractor source, and examination of products upon delivery.

Contrary to the above, measures were not adequate to assure that purchased material or equipment conformed to procurement documents in that vendor supplied wall mounted instrument panels did not meet approved fabrication drawing No. D-8418 Rev. 6 because of undersized fillet welds and welds that did not conform to drawing configuration.

This is a Severity Level IV Violation (Supplement II).

1. Admission or Denial of the Alleged Violation TVA admits the violation occurred as stated.

2. Reason for the Violation The original welding inspection was performed by York Electro Panel QC personnel and documented on shop travelers. The York Electro Panel inspectors did reject and cause weld repair for various reasons, but failed to identify all conditions.

The TVA inspector reviewed the shop travelers, performed visual inspections, and randomly gauged the weld sizes. Weld inspections were reported as satisfactory; however, the TVA sample inspection was not sufficient to identify the undersized welds and the failure to conform to drawing configuration.

v-= - e - - w e

_2-

3. Corrective Steps Which Have Been Taken and Results Achieved Since this violation, TVA's Procurement Quality Assurance Branch (PQAB) inspectors have had additional training in welding inspection.

Also, PQAB has developed and implemented inspection planning (including welding requirements) for all contracts requiring source surveillance.

. This has been incorporated into PQAB Quality Methods Instruction (QMI)

No. 441, Shop Surveillance Planning, which was issued February 27, 1987.

The TVA design engineers are reviewing the welds for. adequacy. If adequate, TVA will accept welds as is, and arrange for supplier's drawing to be revised to conform. Preliminary indications are that the welds are compatible with panel material thickness (1/8-inch). If found to be inadequate, welds will be repaired per supplier's drawing.

4. Corrective Steps Which Will Be Taken To Avoid Further Violations PQAB will investigate the applicability of this violation to other BLN contracts and initiate Condition Adverse to Quality Reports (CAQRs) for all identified discrepancies.

Future PQAB inspection plans will address welding requirements, including sampling requirements.

5. Date When Full Compliance Will Be Achieved Training on QMI No. 441 is scheduled for completion by June 30, 1987.

The design review for adequacy of welds and any necessary corrective action will be accomplished by September 30, 1987.

The investigation for applicability to other BLN contracts will be completed by September 30, 1987.

l i

i

, ,,-,- n.,, . ,---. . _ . , - -- n--,- - , , . - , , . , , - . , , , -