ML18031B109
| ML18031B109 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 12/30/1986 |
| From: | Domer J TENNESSEE VALLEY AUTHORITY |
| To: | Grace J NRC, NRC OFFICE OF ADMINISTRATION (ADM) |
| References | |
| NUDOCS 8701020243 | |
| Download: ML18031B109 (8) | |
Text
TENNESSEE VALLEYAUTHORITY CHATTANOOGA, TENNESSEE 37401 5N 157B Lookout Place QEC 50 886 U.S. Nuclear Regulatory Commission ATTN:
Document Control Desk Office of Nuclear Reactor Regulation Washington, D.C.
20555 Attention:
Dr. J.
Nelson Grace In the Matter of Tennessee Valley Authority Docket Nos.
50-259 50-260 50-296 BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 NRC-0 EGION II INSPECTION REPORT NOS. 50-259/86-34, 50-260/86-34, AND 50-296/86-34
RESPONSE
TO VIOLATION Enclosed is our response to G.
G. Zech's December 5,
1986 letter to S.
A. White transmitting IE Inspection Report,Nos.
50-259/86-34, 50-260/86-34, and 50-296/86-34 which cited TVA with one Severity Level IV Violation for our Browns Ferry Nuclear Plant.
If you have any questions, please get in touch with M. J.
May at (205) 729-3566.
To the best of my knowledge, I declare the statements contained herein are complete and true.
Very truly yours, TENNESSEE VALLEY AUTHORITY J.
A. Domer, Assistant Director
'Nuclear Safety and Licensing Enclosure cc:
See page 2
8701020243 861230 PDR ADQCK 05000259 G
PDR An Equal Opportunity Employer
~ (~sI-p)I 1
~
~
U.S. Nuclear Regulatory Commission cc (Enclosure):
Mr. James M. Taylor, Director U.S. Nuclear Regulatory Commission Office of Inspection and Enforcement Washington, D.C.
20555 Mr. G.
G. Zech, Director U.S. Nuclear Regulatory Commission TVA Projects 101 Marietta St.,
NW, Suite 2900 Atlanta, Georgia 30323 Browns Ferry Resident Inspector Browns Ferry Nuclear Plant P.O.
Box 2000
- Decatur, Alabama 35602
RESPONSE
NRC INSPECTION REPORT NOS.
50-259/86-34, 50-260/86-34, AND 50-296/86-34 G.
G.
ZECH'S LETTER TO S.
A. WHITE DATED DECEMBER 5, 1986 VIOLATION During the Nuclear Regulatory Commission (NRC) inspection conducted on October 6-10,
- 1986, a violation of NRC requirements was identified.
The violation involved welders qualified to a combination procedure where the record did not show the amount of weld metal deposited by each of the weld processes used.
In accordance with the "General Statement of Policy and Procedure for NRC Enforcement Actions," 10 CFR Part 2, Appendix C (1986), the violation is listed below:
P'aragraph (a) (1) of 10 CFR 50.55 (a) requires that structures and components be fabricated to quality standards commensurate with the importance of the safety function.
ASME Code Section IX, 1980 edition, paragraph QW-306 states in part that, for combination qualifications in a single test
- coupon, the limits for thicknesses of deposited weld metal
...shall be considered individually for each process used.
The welder qualified in combination on a single test coupon is qualified to weld within his limits of qualification with each specific process.
Contrary to the above, on October 9,'"1986, the qualification records o'
eight welders qualified to a combination weld procedure did not show the amount of weld metal deposited by each of the weld processes used; and therefore, it was not possible to verify the limits of qualification with each specific process.
This is a Severity Level IV violation.
l.
Admission or Denial of the Alle ed Violation or Findin TVA admits the violation.
2.
Reasons For the Violations or Findin if Admitted The TVA Browns Ferry Nuclear Plant (BFN) Welding Performance Qualification Record does not state the thickness range for each process when using the GT-SM combination detail welding procedure.
V The combination welder qualification test was deleted from the General Construction Specification on June 12, 1981.
At that time, BFN discontinued using the combination welder qualification test.
- However, BFN accepted and transferred combination welder performance qualification test records from other sites using qualification tests performed before the June 12, 1981 discontinuation of combination GT-SM tests.
3.
Corrective Ste s Which Have Been Taken and Results Achieved Retesting of all active welders at BFN who had a GT-SM combination test was completed October 31, 1986.
The new tests were to a GT process and SM process with thickness limitation on each welding performance qualification record.
Also QC verifies the welders qualification including thickness limitation.
4.
Corrective Ste s Which Will Be Taken to Avoid Further Violations or Findin s BFN will not accept any GT-SM combination test from other TVA sites.
5.
Date When Full Com liance Will Be Achieved Full compliance has been achieved.
p'I