ML18036A470
| ML18036A470 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 11/27/1991 |
| From: | Wilson B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML18036A469 | List: |
| References | |
| RTR-REGGD-01.033, RTR-REGGD-1.033 50-259-91-40, 50-260-91-40, 50-296-91-40, NUDOCS 9112120112 | |
| Download: ML18036A470 (4) | |
Text
ENCLOSURE 1
NOTICE OF VIOLATION Tennessee Valley Authority Browns Ferry 1, 2, and 3
Docket Nos. 50-259, 50-260, and 50-296 License Nos.
DPR-33, DPR-52, and DPR-68 During the Nuclear Regulatory Commission (NRC) inspection conducted on October 17 - November 15,
- 1991, a violation of NRC requirements was identified.
The violation with three examples was for failure to follow procedures for control of electrical systems.
In accordance with the "General Statement of Policy and Procedure for NRC Enforcement Actions,"
(1991), the violation is listed below:
Technical Specification Section 6.8.1, Procedures, requires that written procedures shall be established, implemented, and maintained covering the activities recommended in Appendix A of Regulatory Guide 1.33, Revision 2, February 1978.
Appendix A of Regulatory Guide 1.33 includes administrative procedures for equipment control and general operating procedures.
t Contrary to the above, these requirements were not met for the following three examples:
l.
Operating Instruction 47, Turbine Generator
- System, requires that the generator exciter field breaker be opened after opening the generator output breaker.
On October 18, 1991, during a controlled plant shutdown, the exciter field breaker was not opened which caused a reverse power relay actuation causing an electrical transient.
This resulted in the operators tripping the reactor due to the number of unexpected equipment responses.
2.
Site Directors Standard Practice 14.9, Equipment Clearance Procedure, requires for components which are not uniquely identified, that tags will identify specifically as possible the location of the tagged components.
On September 22,
- 1991, Hold Order 0-91-657 did not specify fuse unique identification numbers nor specify the location of fuses in the breaker compartment.
This resulted in wrong fuses being pulled and transfer of the 4160 volt shutdown board from the normal power supply to the alternate supply.
3.
Site Standard Practice 12.53, Component Labeling Signs and Operator Aids, requires that Operations be responsible for preparing and hanging labels as modifications are completed.
Design Change Notice W6839B, Modification for Reroute/Replace/Retag Electrical
- Cables, did not adequately addr ess the removal of spared or deleted labels involving the 2B-3, Drywell Blower.
The inspector identified on September 25,
- 1991, a power supply breaker identification label for drywell blower 2B-3 that was on two different electrical boards.
9112120112 911127 PDR ADOCK 05000259 8
0 0
e Tennessee Valley Authority Browns Ferry I, 2, and 3
2 Docket Nos. 50-259, 50-260, and 50-296 License Nos.
DPR-33, DPR-52, and 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, Tennessee Valley Authority is hereby required to submit a written statement or explanation to the U.S.
Nuclear Regulatory Commission, ATTN:
Document Control
- Desk, Washington, DC
- 20555, with a
copy to the Regional Administrator, Region II, and if applicable, a copy to the NRC Resident Inspector, within 30 days of the date of the letter transmitting this Notice of Violation.
This reply should be clearly marked as a "Reply to a Notice of Violation" and should include for each violation:
(I) the reason for the violation, or if contested, the basis for disputing the violation, (2) the corrective steps that have been taken and the results
- achieved, (3) the corrective steps that will be taken to avoid further violations, and (4) the date with full compliance will be achieved.
If an adequate reply is not received in the time specified in this Notice, an order may be issued to show cause why the license should not be modified, suspended, or revoked, or why such other action as may be proper should not be taken.
Where good cause is
- shown, consideration will be given to extending the response time.
FOR THE NUCLEAR REGULATORY COMMISSION Dated at Atlanta, Georgia this 27th day of November 1991 TVA Projects