ML20205D510
| ML20205D510 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 03/26/1999 |
| From: | Wiens L NRC (Affiliation Not Assigned) |
| To: | Cowan J FLORIDA POWER CORP. |
| References | |
| TAC-M96398, NUDOCS 9904020223 | |
| Download: ML20205D510 (3) | |
Text
Mr. John Pzul Cow 2n.
March 26, 1999 Vice Presid::nt, Nucirr Operations Florida Power Corporation
(
- ATTN.: Manager, Nuclear Licensing (SA2A)
' Crystal River Energy Complex 15760 W. Power Line Street Crystal River, Florida 34428-6708
SUBJECT:
CRYSTAL RIVER UNIT 3 - POTENTIAL OVERPRESSURIZATION OF THE NSCCC SYSTEM PlPING - CLOSURE OF STAF F REVIEW (TAC NO. M96398)
Dear Mr. Cowan:
By letters dated October 8,1996 and February 28,1997, Florida Power Corporation (FPC) provided responses to a Nuclear Regulatory Commission (NRC) Request for Additional 1
Information concerning a postulated failure of a Reactor Coolant Pump (RCP) seal area heat exchanger which could cause an overpressurization of the Nuclear Services Closed Cycle Cooling system. This issue was originally identified by a Service Water System Self-Assessment inspection conducted by the NRC on July 10-14,1995 (Inspection Report No. 50-302/95-15).
In your responses, you provided information on the design of the systems, indications and alarms which would alert operators to a malfunction in the system, procedural guidance which would guide operators in the mitigation of a potential failure of the system, risk significance based on Probabilistic Safety Analysis, and other information concerning the inspection and operation of the system which led to your determination that an RCP seal area heat exchanger loss-of-coolant accident was a non-risk-significant event.
Based on the information provided in your letters, an in-depth study of potential system modifications to improve system reliability is not warranted. Therefore, NRC staff review of this L issue for Crystal River Unit 3 is closed. FPC's cooperation in providing the information for NRC review and closure of this issue is appreciated.
d Sincerely, oaYA.
, bior Project Manager Project Directorate ll-3
() 'Nk 9904020223 990326 Division of Licensing Project Management hDR ADOCK 050003 2 Office of Nuclear Reactor Regulation Docket No. 50-302 cc: See next page DISTRIBUTION:
UBonhetSpe 8 PUBLIC
~ Crystal River R/F JZwolinski/SBlack CThomas BClayton r:1100 ;$,C g g gg gy rmie!
s RCaruso LWert Region 11 DOCUMENT NAME: G:\\ CRYSTAL \\M996398.WPD To rcceive a copy of this document, indicate in the bof:
C" = Copy.without attachment / enclosure "E" = Copy with attachment /enclosura "N" = No copy J
,1 1
0FFICE PM:PDII-3 lE LA:POII 3 l C-SRXIl Q [V l
l D:ftfil 3 p lF t
NAME LWiens:lec./ M D BClayton A p &
1 JW9MF 41 8 /
_DATE 03/ / 7/99 03//'//99
(,03//f /99
~03/?d:al99
"~~
. Official RW5rd Copy t
- p.
p r.to
. g-p UNITED STATES
~
T s
j
' NUCLEAR REGULATORY COMMISSION
~
WASHINGTON, D.C. 20566 4001
%,*****go*
March 26, 1999
' Mr.' John Paul Cowan.
' Vice President, Nuclear Operations
. Florida Power Corporation
' ATTN.:' Manager, Nuclear Licensing (SA2A)
Crystal River Energy Complex 15760 W. Power Une Street Crystal River, Florida 34428-6708
SUBJECT:
CRYSTAL RIVER UNIT 3 - POTENTIAL OVERPRESSURIZATION OF THE NSCCC SYSTEM PIPING - CLOSURE OF STAFF REVIEW (TAC NO. M96398)
Dear Mr. Cowan:
By letters dated October 8,1996 and February 28,1997, Florida Power Corporation (FPC) provided responses to a Nuclear Regulatory Commission (NRC) Request for Additional Information conceming a postulated failure of a Reactor Coolant Pump (RCP) seal area heat exchanger which could cause an overpressurization of the Nuclear Services Closed Cycle Cooling system. This issue was originally identified by a Service Water System Self-Assessment inspection conducted by the NRC on July 10-14,1995 (Inspection Report No. 50-302/95-15).
. In your responses, you provided information on the design of the systems, indications and alarms which would alert operators to a malfunction in the system, procedural guidance which would guide operators in the mitigation of a potential failure of the system, risk significance based on Probabilistic Safety Analysis, and other information concerning the inspection and operation of the system which led to your determination that an RCP seal.rea heat exchanger loss-of-cociant accident was a non-risk-significant event.
Based on the information provided in your letters, an in-depth study of potential system modifications to improve system reliability is not warranted. Therefore, NRC staff review of this issue for Crystal River Unit 3 is closed. FPC's cooperation in providing the information for NRC review'and closure of this issue is appreciated.
Sincerely,
(
l Leonard A. Wiens, Senior Project Manager Project Directorate ll-3 l
Division of Licensing Project Management Office of Nuclear Reactor Regulation 4
Docket No. 50-302 cc: See next page f'
l t
I
3 i[t Mr. John Paul Cowan CRYSTAL RIVER UNIT NO. 3 Florida Power Corporation GENERATING PLANT cc:
Mr. R Alexander Glenn Chairman Corporate Counsel Board of County Comt issioners Florida Power Corporation Citrus County MAC-ASA 110 North Apopka Avenue P.O. Box 14042 invemess, Florida 34450-4245 St. Petersburg, Florida 33733-4042 Mr. Robert E. Grazio, Director Mr. Charles G. Pardee, Director Nuclear Regulatory Affairs (SA2A)
Nuclear Plant Operations (NA2C)
Florida Power Corporation Florida Power Corporation Crystal River Energy Complex Crystal River Energy Complex 15760 W. Power Line Street 15760 W. Power Line Street Crystal River, Florida 34428-6708 Crystal River, Florida 34428-6708 Senior Resident inspector Mr. Robert B. Borsum Crystal River Unit 3 l
Framatome Technologies Inc.
U.S. Nuclear Regulatory Commission 1700 Rockville Pike, Ente 525 6745 N. Tallahassee Road Rockville, Maryland 20852 Crystal River, Florida 34428 Mr. William A. Passetti, Chief Mr. Gregory H. Halton Department of Health Director, Quality Programs (SA2C)
Bureau of Radiation Control Florida Power Corporatiori i
2020 Capital Circle, SE, Bin #C21 Crystal River Energy Complex
)
Tallahassee. Florida 3J399-1741 15760 W. Power Line Street Crystal River, Florida 34428-6700 Attorney General Department of Legal Affairs Regional Administrator, Region il l
The Capitol U.S. Nuclear Regulatory Commission Tallahassee, Florida 32304 61 Forsyth Street, SW., Suite 23T85 Atlanta, GA 30303-3415 Mr. Joe Myers, Director Division of Emergency Preparedness Mr. Leonard D. Wert Department of Community Affairs U.S. Nuclear Regulatory Commission 2740 Centerview Drive _
61 Forsyth Street, SW., Suite 23T85 Tallahassee, Florida 32399-2100 Atlanta, GA 30303-3415
!