ML20207H929
| ML20207H929 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 03/04/1999 |
| From: | Hughey W ENTERGY OPERATIONS, INC. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| GRNO-99-00020, GRNO-99-20, NUDOCS 9903160141 | |
| Download: ML20207H929 (5) | |
Text
.
~ ab Of J h[f Entsrgy operations. Inc.
PO Box 756 Port Goson MS 39150 Tel 601437-6470 1
W.K.Hughey re Nuckxtf Safet/ & Fimffatory Af'a#4 a
thrdh 4; '1999 3
U.S. Nuclear Regulatory Commission Mail Station P1-37 Washington, D.C 20555 Attention:
Document Control Desk
Subject:
Grand Gulf Nuclear Station Unit 1 Docket No. 50-416 License No. NPF-29 Simulator Certification Update in Accordance with 10CFR55.45 GNRO-99/00020 Gentlemen:
This submittal contains an update to our original certification of the Grand Gulf Nuclear Station simulation facility in accordance with the requirements of 10CFR55.45(b)(5). This report contains a description of the previous four years of performance tests, any uncorrected performance test failures with a schedule for correcting any such failures, a schedule for the next four years of planned performance tests, and a description of other testing performed following simulator modifications.
In accordance with the requirements of 10CFR55.45(b)(5), Entergy Operations will submit a similar report approximately four years from this date.
Please contact William B. Brice at 601-437-6556 should you have questions or need any additionalinformation.
Yours truly,
{
/
N h
WKH/WBB/ams attachment:
Simulator Certification Update in Accordance with 10CFR55.45 g
cc:
(See Next Page) f 110081 Y
9903160141 990304 PDR ADOCK 0 4y6 p
..... -.. - _.. -. -.... ~ -. - _ -... -
I
$NRO-99/OdO20 Page 2 of 2 cc:
Ms. J. L. Dixon-Herrity, GGNS Senior Resident (w/a)
Mr. L. J. Smith (Wise Carter) (w/a)
Mr. N. S. Reynolds (w/a)
Mr. H. L. Thomas (w/o)
Mr. E. W. Merscho# (w/a)
Regional Administrator U.S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 400 Arlington,TX 76011 Mr. George F. Dick Jr., Project Manager (w/2)
E Office of Nuclear Reactor Regulation 1 Whiteflint N.11555 Rockville Rockville, MD 20852
- ~
Att: chm:nt 1 to GNRO-99/00020 Page 1 of 3 Grand Gulf Nuclear Station Simulator Certification Update in Accordance with 10CFR55.45 A.
Summary of Major Cha'aes Since Last Submittal 1.
General a.
Simulation of the plant BOP computer was upgraded in accordance with the Plant Data System computer implemented in the GGNS control room.
b.
The simulator radio system was replaced.
c.
A digital Feedwater Control System was implemented in the simulator d.
The core neutronics model was updated to reflect the GGNS 1998 fuel cycle data, e.
The following system models were replaced:
i Standby Liquid Control System i
Plant Chill Water system MSIV Leakage Control System B.
Future Changes 1.
General a.
A simulator rehost project is in progress which will implement a PC based system.
C. '
Description of the Previous Four Years of Performance Testing 1.
The transient tests, malfunction tests, steady state tests and computer real time were all completed as stated in the March 1995 update with no failures.
D.
Uncorrected Performance Test Failures and Schedule for Correction 1.
Documented simulator discrepancies are corrected based upon training impact. Currently there are no test discrepancies which seriously impact licensed operator training.
2
Attichm:nt 1 to GNRO-99/00020
{
Page 2 of 3 i
E.
' Schedule for the Next Four Years of Performance Tests
]
1.
All transient tests, steady state tests and the computer real time test will be performed annually.
2.
Approximately one-fourth of the system malfunction tests will be performed each year as
{
follows:
a.
1999 - Malfunctions in the following systems:
Reactor Recirculation system Control Rod Drive (CRD Hydraulic and RC&lS)
Standby Liquid Control System l
Neutron Monitoring System l
Reactor Water Cleanup System f
b.
2000 - Malfunctions in the following systems:
Reactor Protection System Reactor Core isolation Cooling (RCIC)
Residual Heat Removal System Low Pressure Core Spray High Pressure Core Spray Leak Detection VesselInstrumentation
~ Main Steam System and Safety Relief Valves c.
2001 - Malfunctions in the following systems:
Condensate and Feedwater systems Radiation Monitoring Turbine and Turbine Control Turbine Lube Oil Generator and Generator Auxiliaries Circulating Water system d.
2002 - Malfunctions in the following systems:
Containment systems i
Heating Ventilation and Cooling systems Offgas system Electrical Distribution System (AC and DC)
Annunciator System Standby Service Water Plant Service Water Turbine Building Cooling Water Component Cooling Water Instrument Air
.=.-
I Attichmtnt 1 to GNRC V;0020 Page 3 of 3 1
~
F.
" Other Testing performed following simulator modifications and deficiency resolutions 1.
Malfunctions and other simulator features are added, modified, or deleted as determined by training needs, industry events, or the plant design change process. Retests which may l
include portions of the affected tests may include several tests depending on the problem l
resolution.
l 1
l r
l 1
l v=
--w