ML19332E998
| ML19332E998 | |
| Person / Time | |
|---|---|
| Site: | Fermi  |
| Issue date: | 12/04/1989 |
| From: | Stang J Office of Nuclear Reactor Regulation |
| To: | Sylvia B DETROIT EDISON CO. |
| Shared Package | |
| ML19332E999 | List: |
| References | |
| TAC-59611, TAC-74835, NUDOCS 8912130253 | |
| Download: ML19332E998 (3) | |
Text
a J
December 4, 1989 lF 3,1, 4
Docket No. 50-341-DISTRIBUTION j '
CLE48t104E"@h ACRS~(10)
NRC & Local PDRs EJordan Mr. R. Ralph Sylvia PD31 P1 ant Gray PShea
- Senior Vice President
. Nuclear JCalvo Operations JZwolinski Detroit Edison Company PShuttleworth 6400 North Dixie-Highway OGC Newport, Michigan? 48166 JStang
Dear Mr. Sylvia:
1
SUBJECT:
CONTROL SYSTEM FAILURE ANALYSIS LICENSE CONDITION 2.C.8 y
(TAC NOS. 59611 AND 74835)
License Condition 2.C.(8) of the Facility Operating License No. NPF-43.for the
- Fermi-2 facility states:
Prior to startup following-the first refueling outage, Detroit Edison Company (DECO) shall. provide the NRC staff for its review and approval, the necessary analysis or modifications needed to resolve the impact of control system = failures due to a failure or malfunction of power sources or sensors which provide power or signals to two or more control systems.
By letters dated September 12 and 28,-1989, DECO submitted both a control system common power supply and a common sensor failure evaluation report.
The report supplemented the existing Fermi-2 Updated Final Safety Analysis Report (UFSAR) Chapter =15 accident analyses and addressed License Condition 2.C.(8)
J
- regarding multiple _ control system failures.
j Enclosed is the staff's Safety Evaluation of the report.
Based on our evaluation the staff concludes that.the net effect of a nonsafety common power source / instrument failure are bounded by events postulated in the UFSAR.
In addition, the staff finds that DECO has satisfied the requirements of License i
Condition 2.C.(8).
This completes the staff actions on TAC Numbers 59611 and 74835.
Sincerely, q,p -
John F. Stang, Project Manager Project Directorate III-1 Division of Reactor Projects - III, IV, V & Special Projects Office of Nuclear Reactor Regulation
Enclosure:
As stated cc w/ enclosure:
' l See next page
-).
" LA/PD31:DRSP PM/RD :DRSP
(
31:DRSP
.PSHEA J3JAT 12('\\/89 12
/89 12/$/89 FERMI TAC 59611, 74853
\\
8912130253 891204 DR ADOCK 050 3 1~
f
'{
o
"'Th,( g ang'o,;.
- L UNITED STATES NUCLEAR REGULATORY COMMISSION o
R
{'
,I W ASHINGTON, D. C. 20555
[
[.
December.4, 1989
%.e.....j
-Docket No. 50-341.
Mr.'B. Ralph Sylvia-Senior'Vice President - Nuclear Operations Detroit Edison-Company 6400 North Dixie Highway Newport,11(chigan,48166
Dear Mr. Sylvia:
^
SUBJECT:
CONTROL SYSTEM FAILURE ANALYSIS LICENSE CONDITION 2.C.8
-(TAC NOS. 59611 ANC 74835)
Lteense CcnditiorJ2.C.(8) of the facility Operating License tio. NPF-43 for the Fermi-2 facility states:
Prior to startup following the first refueling outage Detroit Edisor.
Corapany -(Deco) shall provide the NRC staff for its review and approval, o
the necessary analysis or rrodifications needed to resolve the impact of.
ccr. trol system failures due to a f ailure or mc1 fur.ctiori of power sources
- or sensers which provide pcwer or sigt.als to two or rnoro control systor s.
-By letters dated September 12 and 28, 1909,-DECe submitted both a control system corm.on. power supply and a corrn.on sensor failure evaluation report. The nport si.pplemented the existing Fermi-2 Updated Final Safety' Ar.alysis Repcrt f
.(UFSAR) Chapter 15 accident analyses and addressed License Concitior. 2.C.(8) regarding nmitiple. control system failures.
Enclosed is the staff's Safety Evaluation of the repcrt. Based cn our 1.
evaluation the staff concludes that the net effect of a r.cnsafety corron power l.
source /instrur.:ent failt;re are bour.ded by events pcstulated in. the UFSAR.
In l
addition, the staff fir.ds that DECO has satisfied the requireraents of License b
Conditier 2.C.(8). This completes the staff actions on TAC Numbers 59611-and 74835.
Sincerely, ohn F. St
, Project Manager Project Directorate III-1 Division of Reactor Projects - III, IV, V & Special Projects i'
Office of fluclear Reactor Regulation
Enclosure:
As stateci cc w/ enclosure:
See next page
3 i'
s:y t
t
- e e 1
. m 3
Mr.-B. Ralph Sylvia.
Fermi-2 Facility Detroit Edison Company-cc:
Mr,. Ronald-C. Callen Ms. Lynne Goodman Adv'. Planning Review Section Supervisor - Licensing Michigan Public Service Comission Detroit Edison Company 6545 Mercantile Way Fermi Unit 2 P. O. Box 30221 6400 North Dixie Highway Lansing, Michigan 48909 Newport, Michigsn 48166 3
John Flynn, Esq.
. Senior Attorney-Detroit Edison Company s
2000 Second Avenue-Detroit, Michigan 48226 Nuclear Facilities and Environmental
- Monitoring Section Office Division of Radiological Health P. O. Box 30035 Lansing, Michigan 48909 Mr. Walt Rogers U.S. Nuclear Regulatory Comission Resident Inspector's Office 6450 W. Dixie Highwayz
' Newport, Michigan 48166 Monroe C'ounty Office of Civil Preparedness 963 South Raisinville Monroe, Michigan 48161
. Regional Administrator, Region III U.S. Nuclear Regulatory Commission r
799 Roosevelt Road l
Glen Ellyn, Illinois 60137 L-
,t 4
,