ML18033A387
| ML18033A387 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 09/27/1988 |
| From: | Gridley R TENNESSEE VALLEY AUTHORITY |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| NUDOCS 8810060020 | |
| Download: ML18033A387 (11) | |
Text
~RI ACCESSCON NBR:8810060020 DOC.DATE: 88/09/27 NOTARIZED:
NO DOCKET FACIL,:50-259 50-260 50-297 AUTH.NAME GRIDLEY,R.
RECIP.NAME Browns Ferry Nuclear Power Station, Unit 1, Tennessee Browns Ferry Nuclear Power Station, Unit 2, Tennessee North Carolina State Univ. PULSTAR Reactor AUTHOR AFFILIATION Tennessee Valley Authority RECIPIENT AFFILIATION Document Control Branch (Document Control Desk) 05000259 05000260 05000297
SUBJECT:
Requests extension of commitment date re operability of radioactive effluent instruments.
DISTRIBUTION CODE:
A001D COPIES RECEIVED:LTR ENCL SIZE:
TITLE: OR Submittal: General Distribution NOTES:1 Copy each to: F.McCoy,J.G.Partlow, S.Richardson,S.Black, B.D.Liaw.
1 Copy each to: S.Black, J.G.Partlow, S.Richardson B.D.Liaw,F.McCoy.
05000259 05000260 h
RECIPIENT ID CODE/NAME SIMMS,M SNPD PD SNPD PM INTERNAL: ACRS NRR/DEST/ADS 7E NRR/DEST/ESB 8D NRR/DEST/RSB 8E NRR/PMAS/ILRB12 O~HBS EG FILE 0
COPIES LTTR ENCL 1
0 5
5 1
1 6
6 1
1 1
1 1
1 1
1 0
1 1
RECIPIENT ID CODE/NAME SNPD LA GEARSgG ADAMS,A ARM/DAF/LFMB NRR/DEST/CEB 8H NRR/DEST/MTB 9H NRR/DOEA/TSB ll NUDOCS-ABSTRACT OGC/HDS1 RES/DSIR/EIB COPIES LTTR ENCL 1
0 1
1 1
1 1
0 1
1 1
1 1
1 1
1 1
0 1
1 EXTERNAL: LPDR NSIC 1
1 1
1 NRC PDR Ag((: 4$ F
) @gap y pg) 1 1
R I
S h
SS TOTAL NUMBER OF COPIES REQUIRED:
LTTR ~ ENCL
TENNESSEE VALLEYAUTHORITY CHATTANOOGA. TENNESSEE 37401 5N 157B Lookout Place MP 87 $le U.S.
Nuclear Regulatory Commission ATTN:
Document Control Desk Washington, D.C.
20555 Gentlemen:
In the Matter of Tennessee Valley Authority Docket Nos.
50-259 50-260 50-296 BROWNS FERRY NUCLEAR PLANT (BFN) UNITS 1, 2, AND 3 REQUEST FOR EXTENSION OF COMMITMENT DATE-OPERABILITY OF RADIOACTIVE EFFLUENT INSTRUMENTS
Reference:
R. Gridley letter to NRC dated August 25, 1988 "Browns Ferry Nuclear Plant (BFN) Inoperable Radioactive Effluent Instruments" In the referenced letter, TVA provided NRC with a schedule for restoring the subject, instruments to operable status.
During testing of a modification on the raw cooling water (RCW) monitors, a design problem was encountered.
This problem affects both the RCW monitors and the residual. heat, removal.,serv,ice.
water (RHRSW) monitors.
The intent of the modification was to provide a downscale inoperable annunciation when the operate switch was moved from the operate mode.
This modification resulted in the unintentional masking of a loss of "detector high voltage signal" to the same annunciator.
The circuit logic is being modified to correct this deficiency.
This modification will be completed and the RHRSW and RCW monitors will be operable before fuel load.
The required compensatory monitoring will continue until the monitors become operable.
Summary statements of commitments contained in this submittal including a list of instruments to be restored to operable status are provided in enclosure l.
The commitment for returning the other instruments to operable
- status, as listed in the referenced letter, remains unchanged.
88100S0020 8809m'DR ADDCI( 05000259 PNU
,~l /k': a<a PD'P/P4 An Equal Opportunity ErnpIoyer
U.S. Nuclear Regulatory Commission 8RP S7eW If you have any questions concerning this submittal, please telephone Patrick Carier at (205) 729-2689.
Very truly yours, TENNESSEE VALLEY AUTHORITY R. Gridley, Manager Nuclear Licensing and Regulatory Affairs Enclosure cc:
Enclosure Ms.
S.
C. Black, Assistant Director for Projects TVA Projects Division U.S. Nuclear Regulatory Commission One White Flint, North 11555 Rockvi lie Pike Rockvi lie, Maryland 20852 Mr. F.
R.
McCoy, Assistant Director for Inspection Programs TVA Projects Division U.S. Nuclear Regulatory Commission Region II 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323 Browns Ferry Resident Inspector Browns Ferry Nuclear Plant Route 12, Box 637
- Athens, Alabama 35611
ENCLOSURE 1
Commitment List The following is a list of radioactive effluent monitors that will be operable before fuel load of unit 2.
Ins'trument 1)
RCN monitor 1-90-132 2)
RCN monitor 2-90-132 3)
RCN monitor 3-90-132 4)
RHRSN monitor 1-90-134 5)
RHRSN monitor 2-90-133 6)
RHRSN monitor 2-90-134 Operable Date Before Fuel Before Fuel Before Fuel Before Fuel Before Fuel Before Fuel
- Load, Load,
- Load, Load,
- Load, Load, Unit 2 Unit 2 Unit 2 Unit 2 Unit 2 Unit 2
ACCELEMTED'I8FRIBUTION DENQNST TION SYSTEM REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)
ACCESSION NBR:8810060020 DOC.DATE: 88/09/27 NOTARIZED: NO FACIL:50-259 Browns Ferry Nuclear Power Station, Unit 1, Tennessee.
50-260 Browns Ferry Nuclear Power Station, Unit 2, Tennessee 50-296 Browns Ferry Nuclear Power Station, Unit 3, Tennessee AUTH.NAME AUTHOR AFFILIATION GRIDLEY,R.
Tennessee Valley Authority RECXP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)
DOCKET 05000259 05000260 05000296'UBJECT:
Requests extension of commitment date re operability of radioactive effluent instruments.
DISTRIBUTION CODE:
AOOID COPIES RECEIVED:LTR
(
ENCL/
SIZE:
TITLE: OR Submittal:
General Distribution NOTES:1 'Copy'each to:'.McCoy,"J".G'.Partlow,-,'S'.Richardson,'S.Black, B.D.Llaw.
1 Copy each to: S.Black, J.G.Partlow, S.Richardson B.D.Liaw,F.McCoy.
1 Copy each to: S. Black, J.G.Partlow,S.Richardson B.D.Llaw,F.McCoy.
R I
3 I
05000259)('S 05000260 /
05000296 g RECIPIENT ID CODE/NAME SIMMS,M GEARS,G COPIES LTTR ENCL 1
0 1
1 RECIPIENT ID CODE/NAME PD COPIES LTTR ENCL 5
5 INTERNAL: ACRS NRR/DEST/ADS 7E NRR/DEST/ESB 8D NRR/DEST/RSB 8E NRR/PMAS/ILRB12 OGC/HDS2 RES/DSXR/EIB EXTERNAL: 'LPDR NSIC 6
6 1
1
.1 1
1 1
- 1 1
1 0
. 1 1
'<f 1 1
ARM/DAF/LFMB NRR/DEST/CEB 8H NRR/DE ST/MTB 9H NRR/DOEA/TSB 11 DUC~BSTRACT 01 1
0 1
1 1
1 1
1 1
1 1
1 NRC 'PDR,
(,( "'
1 NOTES 5
5
~: ~wc/os~~ JR~8 R(.
L) LSY R-(~~~
Qoc K-~W N<
~ f,o+Q R'
A' "3't D,'
j TOTAL NUMBER OF COPIES REQUIRED:
LTTR 'NCL
~/
0 1
~
gy ~
I a
~
TENNESSEE VALLEYAUTHORITY CHATTANOOGA. TENNESSEE 3740l 5N 157B Lookout Place IKP 27 I88 U.S. Nuclear Regulatory Commission ATTN:
Document Control Desk Washington, D.C.
20555 Gentlemen:
In the Hatter of Tennessee Valley Authority Docket Nos.
50-259 0-QO 50-296 BROWNS FERRY NUCLEAR PLANT (BFN) UNITS 1, 2, AND 3 REQUEST FOR EXTEN N
OF COMMITMENT DATE-OPERABILITY OF RADIOACTIVE EFFLUENT INSTRUMENTS
Reference:
R. Gridley letter to NRC dated August 25, 1988 "Browns Ferry Nuclear Plant (BFN) Inoperable Radioactive Effluent Instruments" In the referenced letter, TVA provided NRC with a schedule for restori.ng the subject instruments to operable status.
During testing of.a modification on the raw cooling water (RCW) monitors, a design problem was encountered.
Thi~
problem affects both the RCW monitors and the residual heat removal service water (RHRSW) monitors.
The intent of the modification was to provide a downscale inoperable annunciation when the operate switch was moved from the operate mode.
This modification resulted in the unintentional masking of a loss of "detector high voltage signal" to the same annunciator.
The circuit logic is being modified to correct this deficiency.
This modification wi 1 1
be completed and the RHRSW and RCW monitors wi 1 1 be operable before fuel load.
The required compensatory monitoring will continue until the monitors become operable.
Summary statements of commitments contained in this submittal including a list of instruments to be restored to operable status are provided in enclosure 1.
The commitment for returning the other instruments to operable
- status, as listed in the referenced letter, remains unchanged.
8810060020 80092/
'Onr'!( 05000 PNU gg. gag pggP/g(8
/
I An Equal Opportunity Empioyer
0
~ si sc
- ~ <<aa 'a (I
ll
U.S. Nuclear Regulatory Commission SRP R7 $~8 If you have any questions concerning this submittal, please telephone Patrick Carier at (205) 729-2689.
Very truly yours,,
TENNESSEE VALLEY AUTHORITY R. Gridley, Manager Nuclear Licensing and Regulatory Affairs Enclosure cc:
Enclosure Ms.
S.
C. Black, Assistant Director for Projects TVA Projects Division U.S. Nuclear Regulatory Commission One Nhite Flint, North 11555 Rockville Pike Rockville, Maryland 20852 Mr. F.
R.
McCoy, Assistant Director for Inspection Programs TVA Projects Division U.S. Nuclear Regulatory Commission Region II 101 Marietta Street, NN, Suite 2900 Atlanta, Georgia 30323 Browns Ferry Resident Inspector Browns Ferry Nuclear Plant Route 12, Box 637
- Athens, Alabama 35611
ENCLOSURE 1
Commitment List 4'The following is a list of radioactive effluent monitors that will be operable before fuel load of unit 2.
1) 2)
3) 4)
5) 6)
Instrument RCN monitor 1-90-132 RCN monitor 2-90-132 RCH monitor 3-90-132 RHRSH monitor 1-90-134 RHRSN monitor 2-90-133 RHRSN monitor 2-90-134 Operable Oate Before Fuel Before Fuel Before Fuel Before Fuel Before Fuel Before Fuel Load, Unit 2 Load, Unit 2 Load, Unit 2 Load, Unit 2 Load, Unit 2 Load, Unit 2