ML20198M340
| ML20198M340 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 01/12/1998 |
| From: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML20198M315 | List: |
| References | |
| 50-424-97-11, 50-425-97-11, NUDOCS 9801200077 | |
| Download: ML20198M340 (2) | |
See also: IR 07100102/2012013
Text
'
.
.
Southern Nuclear Operating Company, Inc.
Docket Nos. 50 424 and 50-425
Vogtle Electric Generating Piant
License Nos, NPF-68 and NPF-81
8fnits 1 and 2
During an NRC inspection conducted November 2 through December 13, 1997, a
violation of NRC requirements was identified.
In accordance with the " General
Statement of Policy and Procedure for NRC Enforcement Actions." (NUREG 1600),
the violation is listed below:
Technical Specification (TS) Surveillance Requirement (SR) 3.3.1.4,
Reactor Trip System Instrumentation, requires that a 31-day staggered
Trip Actuation Device Operability Test (TAD 0T) be performed to verify
that the reactor trip breaker and bypass breaker auxiliary and cell
switch contacts, used as P-4 interlock, provide the initiation signal to
Solid State Protection System (SSPS) and turbine Electrohydraulic
Control (EHC) systems.
Procedures 14420-1
" Solid State Protection System and Reactor Trip
Breaker Train A Operability Test.' Revision (Rev.) 27: 14420-2, ' Solid
State Protection System and Reactor Trip Breaker Train A Operability
Test." Rev. 19: 14421-1. " Solid State Protection System and Reactor Trip
Breaker Train B Operability Test." Rev. 8: and 14421-2, ' Solid State
Protection System and Reactor Trip Breaker Train B Operability Test."
Rev
6, provide the necessary guidance to perform tne 31-day staggered
test.
TS SR 3.3.2.9, Engineered Safety Feature Actuation System
Instrumentation, requires that an 18-month TADOT be performed to verify
that the P-4 issignal is generated for both the SSPS and EHC systems.
This test verifies that the P-4 signal is generated from both the
reactor trip and bypass breakers.
Procedure 14752-1
" Reactor Trip System P-4 Interlock Test," Rev. 4: and
14752 2, " Reactor Trip System P-4 Interlock Test," Rev. 4. provide the
test method to verify that the P-4 signal is generated to SSPS from the
reactor tri) and bypass breakers.
In addition. Procedures 14752-1/2
test that tie P-4 signal is generated to the EHC from the reactor trip
breaker.
Contrary to the above, since initial startup of both Units 1 and 2.
Procedures 14420-1/2 and 14421-1/2 were inadequate, in that, they failed
to test all auxiliary and cell switch contacts of the reactor trip and
bypass breakers in accordance with TS SR 3.3.1.4.
Additionally.
Procedures 14752-1/2 were inadequate. in that, they failed to test the
P-4 signal generated to the EHC system from the reactor trip bypass
breakers in accordance with TS SR 3.3.2.9.
This is a Severity Level IV violation (Supplement I).
Enclosure 1
9801200077 900112
ADOCK 0500o424
G
_
i
.
,
.
2-
Pursuant to the provisions of 10 CFR 2.201, Southern Nuclear Operating
Company, Inc. is hereby required to submit a written statement or explanation
to the U.S. Nuclear Regulatory Commission ATTN: Document Control Desk,
Washington. 0.C. 20555, with a copy to the Regional Administrator, Region II,
'
and a copy to the NRC Resident Inspector, Vogtle, within 30 days of the date
of the letter transmitting this Notice of Violation (Notice). This reply
should be clearly marked as a " Reply to a Notice of Violation" and should
include for each violation:
(1) the reason for the violation, or, if
contested, the basis for disputing the violation (2) the corrective steps
that ham been taken and the results achieved. (3) the corrective steps that
w1il be t0 ken to avoid further violations, and (4) the date when full
compliance will be achieved.
If an adequate reply is not received within the
time specified in this Notice, an order or demand for information may be
issued as to 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.
Because your res)onse will be placed in the NPZ r blic Document Room (PDR), to
the extent possi)le, it should not include any g monal privacy, 3roprietary,
or safeguards information so that it can be placed in the POR witicut
redaction. However, if you find it necessary to include such information, you
should clearly indicate the specific information that you desire not to be
placed in the PDR, and provide the legal basis to support your request for
withholding the information from the public.
Dated at Atlanta, Georgia
this 12th day of January 1998
Enclosure 1
i