ML16342B676
| ML16342B676 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 05/25/1990 |
| From: | Rood H Office of Nuclear Reactor Regulation |
| To: | Shiffer J PACIFIC GAS & ELECTRIC CO. |
| Shared Package | |
| ML16341F713 | List: |
| References | |
| IEB-88-002, IEB-88-2, TAC-67304, TAC-67305, NUDOCS 9005310440 | |
| Download: ML16342B676 (6) | |
Text
May 25, 1990 Docket Nos. 50-275 and 50-323 Mr. J.
D. Shiffer, Vice President Nuclear Power Generation c/o Nuclear Power Generation, Licensing Pacific Gas and Electric Company 77 Beale Street, Room 1451 San Francisco, California 94106 DISTRIBUTION C~D NRC 5 LPDR PD5 Reading JZwolinski JLarkins HRood PShea OGC RegionV (4)
EMurphy ACRS (10)
EJordan DNeighbors
Dear Mr. Shiffer:
SUBJECT:
CLOSEOUT OF NRC BULLETIN 88-02 FOR DIABLO CANYON POWER PLANT, UNITS 1
AND 2 (TAC NOS.
67304 AND 67305)
The NRC staff has completed its review of actions taken by Pacific Gas and Electric Company (PGIIE) to resolve the issues in NRC Bulletin (NRCB) 88-02, "Rapidly Propagating Fatigue Cracks in Steam Generator Tubes" for Diablo Canyon Units I and 2.
The PGImE actions are documented in your letters dated March 24 and December 12,
- 1988, and February 6, 1990.
The staff's Safety Evaluation is enclosed.
We find that the actions taken by PGImE fully resolve the issues identified in the bulletin and are acceptable.
As described in the conclusions of the enclosed SER, this finding is subject to the development of additional administrative controls by PGIIE, to assure that if significant changes occur in the steam generator operating parameters, updated stress ratio and fatigue usage calculations will be performed.
This requirement is in accordance with finding No.
11 of the staff's SER evaluating the Westinghouse generic program for resolving item C.2 of NRCB 88-02.
Implementation of the additional administrative controls is subject to verification by an NRC staff inspection at some future time.
Based on our evaluation described in the enclosure, we consider your response to NRC Bulletin 88-02 to be satisfactory.
This completes our action on this issue and closes TAC Nos.
67304 and 67405.
If you have any questions regarding this matter, please contact me.
Sincere ly,
Enclosure:
As stated cc:
See next page DRSP/PD5:PM DR P/PD5:(A)D HRood JLarki s
05/25/90 05
/90 9005310440 900525 PDR ADOCK 05000275 9 'DC-Original Signed by Harry Rood Harry Rood, Senior Project Manager Project Directorate V
Division of Reactor Projects - III, IV, V and Special Projects Office of Nuclear Reactor Regulation II o
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Docket Nos.
50-275 and 50-323 t
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 May 25, 1990 Mr. J.
D. Shiffer, Vice President Nuclear Power Generation c/o Nuclear Power Generation, Licensing Pacific Gas and Electric Company 77 Beale Street, Room 1451 San Francisco, Ca liforni a 94106
Dear Mr. Shiffer:
SUBJECT:
CLOSEOUT OF NRC BULLETIN 88-02 FOR DIABLO CANYON POWER PLANT, UNITS 1
AND 2 (TAC NOS. 67304 AND 67305)
The NRC staff has completed its review of actions taken by Pacific Gas and Electric Company (PGSE) to resolve the issues in NRC Bulletin (NRCB) 88-02 "Rapidly Propagating Fatigue Cracks in Steam Generator Tubes" for Diablo Canyon Units 1 and 2.
The PGSE actions are documented in your letters dated March 24 and December 12,
- 1988, and February 6, 1990.
The staff's Safety Evaluation is enclosed.
We find that the actions taken by PG8E fully resolve the issues identified in the bulletin and are acceptable.
As described in the conclusions of the enclosed SER, this finding is subject to the development of additional administrative controls by PGSE, to assure that if significant changes occur in the steam generator operating parameters, updated stress ratio and fatigue usage calculations wi 11 be performed.
This requirement is in accordance with finding No.
11 of the staff's SER evaluating the Westinghouse generic program for resolving item C.2 of NRCB 88-02.
Implementation of the additional administrative controls is subject to verification by an NRC staff inspection at some future time.
Based on our evaluation described in the enclosure, we consider your Iesponse to NRC Bulletin 88-02 to be satisfactory.
This completes our action on this issue and closes TAC Nos.
67304 and 67405.
If you have any questions regarding this matter, please contact me.
Sincerely,
Enclosure:
As stated cc:
See next page Harry Rood, Senior Project Manager Project Directorate V
Division of Reactor Projects - III, IV, V and Special Projects Office of Nu c 1 ear Reactor Regulation
Mr. J.
D. Shiffer Pacific Gas and Electric Company Diablo Canyon CC:
Richard F. Locke, Esq.
Pacific Gas 8 Electric Company Post Office Box 7442 San Francisco, California 94120 Ms. Sandra A. Silver 660 Granite Creek Road Santa Cruz, California 95065 Mr. Peter H.
Kaufman Deputy Attorney General State of California 110 West A Street, Suite 700 San Diego, California 92101 Managing Editor The Count Tele ram Tribune o nson venue P. 0.
Box 112 San Luis Obispo, California 93406 Ms. Nancy Culver 192 Luneta Street San Luis Obispo, California 93401 Regional Administrator, Region V
U.S. Nuclear Regulatory Commission 1450 Maria Lane, Suite 210 Walnut Creek, California 94596 Mr. John Hickman Senior Health Physicist Environmental Radioactive Mgmt. Unit Environmental Management Branch State Department of Health Services 714 P Street, Room 616 Sacramento, California 95814 NRC Resident Inspector Diablo Canyon Nuclear Power Plant c/o U.S. Nuclear Regulatory Commission P. 0.
Box 369 Avila Beach, California 93424 Bruce Norton, Esq.
c/o Richard F. Locke, Esq.
Pacific Gas and Electric Company Post Office Box 7442 San Francisco, California 94120 Dr.
R.
B., Ferguson Sierra Club - Santa Lucia Chapter Rocky Canyon Star Route Creston, California 93432 Chairman San Luis Obispo County Board of Supervisors Room 270 County Government Center San Luis Obispo, California 93408 Michael M. Strumwasser, Esq.
Special Assistant Attorney General State of California Department of Justice 3580 Wilshire Boulevard, Room 800 Los Angeles, California 90010
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