ML17304A884
| ML17304A884 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 01/04/1989 |
| From: | Marlone Davis Office of Nuclear Reactor Regulation |
| To: | Karner D ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| Shared Package | |
| ML17304A885 | List: |
| References | |
| TAC-68248, NUDOCS 8901190430 | |
| Download: ML17304A884 (6) | |
Text
January 4,
1989 Docket Nos.:
STN 50-528, STN 50-529 and STN 50-530 Mr. Donald B. Karner Executive Vice President Arizona Nuclear Power Project Post Office Box 52034 Phoenix, Arizona 85072-2034
Dear Mr. Karner:
DISTRIBUTION NRC 5 LPDRs PD5 Reading GHolahan MVirgilio JLee MDavis OGC (f/info only-)
EJordan BGrimes ACRS (10)
SUBJECT:
EVALUATION OF REACTOR COOLANT PUMP SHAFT CRACKING FOR PALO VERDE UNIT 3 (TAC NO. 68248)
REFERENCE:
REPORT ON UNIT 1 AND 2 REACTOR COOLANT PUMP SHAFTS, ANPP TO USNRC DOCUMENT CONTROL DESK, DATED MAY 20, 1988 (161-01038).
The staff has completed its review of your submittals pertaining to reactor coolant pump (RCP) shaft cracking observed in Palo Verde Units 1 and 2 and cor-rective measures taken for all 3 units.
The review included ANPP's inspection findings, determination of root cause, and corrective actions taken.
Units 1
and 2 are currently operating with modified shafts; Unit 3 is operating with its original shafts which will be replaced during the first refueling outage.
In addition, all three units have vibration monitoring programs in place for early detection of potential shaft fai lure.
The purpose of the staff review was to determine whether continued operation of Unit 3 till the spring 1989 refueling outage is justified.
Our evaluation concludes that the Unit 3 RCP shafts are acceptable for continued operation until modified shafts are installed at the next refueling outage.
Ac-ceptance is based on speed of crack development observed in Units 1 and 2 and the early detection capability for shaft failure.
If you have any questions, please contact me at (301) 492-1368.
original signed by Michael J. Davis, Project Manager Project Directorate V
Division of Reactor Projects - III, IV, V and Special Projects DRSP/PD5+Aig MJDavis 12/pf/88
Enclosure:
Safety Evaluation Report DRS D:
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UNITED STATES NUCL'EAR'REGULATORYCOMMISSION
.WASHINGTON, D. C. 20555 January 4,
1989 Docket Nos.:
STN 50-528, STN 50-529 and STN 50-530 MI'. Donald B. Karner Executive Vice President Arizona Nuclear Power Project Post Office Box 52034 Phoenix, Arizona
,85072-2034
Dear Mr. Karner:
SUBJECT:
EVALUATION OF REACTOR COOLANT PUMP SHAFT CRACKING FOR PALO VERDE UNIT 3 (TAC NO. 68248)
REFERENCE:
REPORT ON UNIT I AND 2 REACTOR COOLANT PUMP SHAFTS, ANPP TO USNRC DOCUMENT CONTROL DESK, DATED MAY 20, 1988 (161-01038).
The staff has completed its review of your submittals pertaining to reactor coolant pump (RCP) shaft cracking observed in Palo Verde Units I and 2 and cor-rective measures taken for all 3 units.
The review included ANPP's inspection findings, determination of root cause, and corrective actions taken.
Units I and 2 are currently operating with modified shafts; Unit 3 is operating with its original shafts which will be replaced dur ing the first refueling outage.
In addition, all three units have vibration monitoring programs in place for early detection of potential shaft failure.
The purpose of the staff review was to determine whether continued operation of Unit 3 till the spring 1989 refuel ing outage is justified.
Our evaluation concludes that the Unit 3 RCP shafts are acceptable for continued operation until modified shafts are installed at the next refueling outage.
Ac-ceptance is based on speed of crack development observed in Uni.ts 1 and 2 and the early detection capability for shaft failure.
If you have any questions, please contact me at (301) 492;1368.
Michael J. Davis, Project, Manager Project Directorate V
Division of Reactor Projects - III, IV, V and Special Projects
Enclosure:
Safety Evaluation Report
~
I
Mr. Donald B. Karner Arizona Nuclear Power Project Executive Vice President Post Office Box 52034 Phoenix, Arizona 85072-2034 Palo Verde CC:
Arthur C. Gehr, Esq.
Snell 5 Wilmer 3100 Valley Center Phoenix, Arizona 85073 Mr. James M. Flenner, Chief. Counsel Arizona Corporation Commission 1200 West Washington Phoenix, Arizona 85007 Charles R. Kocher, Esq. Assistant Council James A. Boeletto, Esq.
Southern California Edison Company P. 0.
Box 800
- Rosemead, Califor nia 91770 Mr. Mark Ginsberg Energy Director Office of Economic Planning and Development 1700 West Washington - 5th Floor Phoenix, Arizona
'85007 Mr..Wayne Shirley Assistant Attorney General Bataan Memorial Building Santa Fe, New Mexico 87503 Mr. Tim Polich U.S. Nuclear Regulatory Commission HC-03 Box 293-NR Buckeye, Arizona 85326 Regional Administrator, Region V
U. S. Nuclear Regulatory Commission 1450 Maria Lane Suite 210 Walnut Creek, California 94596 Ms..Lynn Bernabei'overnment Accountability Project of the Institute for Policy Studies 1901 gue Street, NW Washington, DC 20009 Mr. Charles B. Brinkman, Manager Washington Nuclear Operations Combustion Engineering, Inc.
7910 Woodmont Avenue Suite 1310
- Bethesda, Maryland 20814
II