ML18033B646
| ML18033B646 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 02/20/1991 |
| From: | Wilson B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML18033B645 | List: |
| References | |
| 50-259-90-40, 50-260-90-40, 50-296-90-40, NUDOCS 9103050446 | |
| Download: ML18033B646 (3) | |
Text
ENCLOSURE 1
NOTICE OF VIOLATION Tennessee Valley Authority Browns Ferry 1, 2, 3
Docket Nos. 50-259, 50-260, 50-296 License Nos.
DPR-33, DPR-52, DPR-68 During 'he
- Nuclear, Regulatory Commission (NRC) inspection conducted on December 19, 1990 - January 18,
- 1991, a violation of NRC requirements was identified.
The violation involved two examples of failure to implement design control measures.
In accordance with the "General Statement of Policy and Procedure for NRC Enforcement Actions;"
10 CFR Part 2, Appendix C (1990), the violation is listed below:
10 CFR 50 Appendix B, Criterion III, Desi'gn
- Control, requires that measures shall be established to assure the design basis are correctly translated into specifications,
- drawings, procedures, and instructions, and that measures shall be established for. the selection and review for suitability of application of materials,
- parts, equipment, and processes that are essential to the safety-related functions of the structure,
- systems, and components.
Contrary to the above, activities'involving design control were not being correctly implemented in accordance with requirements for the following two examples:
1.
After problem reporting document BFP
- 900189P, that concerned the specification of cable design criteria, was issued on June 6;
- 1990, and the establishment of a qualified cable list per quality 'design
,change notice gl3819A on August 28,
- 1990, incorrect cables were installed in three applications.
Approximately 3,470 feet of type PX unjacketed
- cable, instead of type PXJ jacketed
- cable, was in'stalled for four design change notices.
Design criteria BFN-50-758 did not allow use of Anaconda or THHN cables in other applications but these cables were installed or specified in design change notices.
2.
During the performance of three post modification tests (PMTs) equipment failed to operate as designed because the drawings used in the design had not been updated with the latest design change or were incorrect.
During performance of PMT-BF-268-006, the RHR Inboard Injection Valve indicated both open and closed at the local control station because of a wiring error due to an incorrect drawing used in the modification workplan.
A problem occurred with circuit breaker operation after the slow bus transfer modification under DCN W14030 because the drawings used in the design change did not incorporate design information following an Appendix R modification.
During PMT-BF-57.038 only two of four logic relays operated because an incorrect drawing was used in the modification workplan.
Tennessee Valley Authority Browns. Ferry 1, 2, 3=
2 Docket Nos. 50-259, 50-260, 50-296 License Nos.
DPR-33, DPR-,52, DPR-68 This is a Severity Level IV Violation (Supplement I) applicable to all three units; Pursuant to the provisions of 10 CFR 2.201, you are hereby required to submit a
written statement or explanation to the Nuclear Regulatory Commission, ATTN:
Document Control
- Desk, Washington, DC 20555; with a
copy to the Regional Administrator, -Region II, and a copy 'to the NRC Resident Inspector, Browns Ferry, within 30 days of the date of the letter transmitting this Notice.
This reply should be clearly marked as a "Reply to a Notice of Violation" and should include:
(1) admission or denial of the violation, (2) the reason for the violation if admitted, (3) the corrective steps.
which have been taken and the results
- achieved, (4) the corrective steps which will be taken to avoid further.
violations, and (5) the date when full compliance will be achieved.
'Where good cause is shown, consideration will be given to extending the response time.
FOR THE NUCLEAR REGULATORY COMMISSION Dated at Atlanta, Georgia this f0<day of February 1991 TVA Projects