ML16341A535
| ML16341A535 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 03/21/1985 |
| From: | Knighton G Office of Nuclear Reactor Regulation |
| To: | Shiffer J PACIFIC GAS & ELECTRIC CO. |
| References | |
| GL-83-28, NUDOCS 8504050375 | |
| Download: ML16341A535 (8) | |
Text
MAR 81 t985 Docket Nos.:
50-275 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 Fr ancisco, California 94106
Dear Mr. Shiffer:
SUBJECT:
GENERIC LETTER 83-28, REQUEST FOR ADDITIONAL INFORMATION The staff is continuing its review and evaluation of the PGImE responses to Generic Letter 83-28 regarding required actions based on generic implications of Salem ATWS events.
Based on our review as of this date we have identified the need for additional information for Diablo Canyon Units 1 and 2 as listed in the enclosure.
It is requested that you provide the information identified in the enclosure within 30 days.
Sincerely, ORlQlNAL5fggED gy
Enclosure:
As stated cc w/enclosure:
See next page DISTRIBUTION
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Mr. J.
D. Shiffer, Vice President Nuclear Power Generation c/o Nuclear Power Generation, Licensing Pacific Gas and Flectric Company 77 Beale Street, Room 1451 San Francisco, Cali fornia 94106 Philip A. Crane, Jr.,
Esq.
Pacific Gas 5 Electric Company Post Office Box 7442 San Francisco, California 94120 Mr. Malcolm H. Furbush Vice President - General Counsel Pacific Gas S.Electric Company Post Office Box 7442 San Francisco, California 94120 Janice E. Kerr, Esq.
California Public Utilities Commission 350 McAllister Street San Francisco, California 94102 Mr. Frederi c k Ei ss ler, Pres ident Scenic Shoreline Preservation Conference, Inc.
4623 More Mesa Drive Santa
- Barbara, California 93105 Ms. Elizabeth Apfelberg 1415 Cozadero San Luis Obispo, California 93401 Mr. Gordon A. Silver Ms. Sandra A. Silver 1760 Alisal Street San Luis Obispo, California 93401 Harry M. Willis, Esq.
Seymour 5 Willis 601 California Street, Suite 2100 San Francisco, California 94108 Mr. Richard Hubbard MHB Technical Associates Suite K
1725 Hamilton Avenue San Jose, California 95125 Mr. John Marrs, Managing Editor San Luis Obis o County Teleqram Tribune 13.1 Johnson Avenue P. 0.
Box 112 San Luis Obispo, California 93406 Diablo Canyon Resident Inspector/Diablo Canyon NPS c/o US Nuclear Regulatory Commission P. 0.
Box 369 Avila Beach, California 934?4 Ms.
Raye Fleming 1920 Mattie Road Shell Beach, California 93440 Joel
- Reynolds, Esq.
John R. Phillips, Esq.
Center for Law in the Public Interest 10951 West Pico Boulevard Third Floor Los Angeles, California 90064 Mr. Dick Blankenburg Editor 5 Co-Publisher South County Publishing Company P. 0.
Bnx 460 Arroyo Grande, California 93420 Bruce Norton, Esq.
Norton, Burke, Berry 5 French, P.C.
202 E. Osborn Road P. 0.
Box 30569
- Phoenix, Arizona 85064 Mr.
W.
C. Gangloff Westinghouse Electric Corporation P. 0.
Box 355 Pittsburgh, Pennsylvania 15230 David F. Fleischaker, Esq.
P. 0.
Box 1178 Oklahoma City, Oklahoma 73101
Arthur C. Gehr, Esq.
Snell 8 Wilmer 3100 Valley Center
- Phoenix, Arizona 85073 Mr. Lee M. Gustafson, Director Federal Agency Relations Pacific Gas
& Electric Company 1050 17th Street, N.W.
Suite 1180 Washington, DC 20036 Regional Administrator - Region V
US Nuclear Regulatory Commission 1450 Maria Lane Suite 210 Walnut Creek, California 94596 Michael J. Strumwasser, Esq.
Special Counsel to the Attorney General State of California 3580 Wilshire Boulevard, Suite 800 Los Angeles, California 90010 Mr. Tom Harris Sacremanto Bee 21st and 0 Streets Sacramento, Cal ifornia 95814 Mr. H. Daniel Nix California Energy Commission 1516 9th Street, MS 18 Sacramento, California 95814 Lewis Shollenberger, Esq.
US Nuclear Regulatory Commission Region V
1450 Maria Lane Suite 210 Walnut Creek, California 94596 Mr. Thomas Devine Government Accountability Proiect Institute for Policy Studies 1901 gue Street, NW Washington, DC 20009
ENCLOSURE REQUEST FOR ADDITIONAL INFORMATION RELATING TO GENERIC LFTTER 83-28 DIABLO CANYON UNITS 1 AND 2 DOCKET NOS: 50-275 AND 50-323 1.
Regarding Position 3. 1. 1, please confirm that the post-maintenance testing required of safety-related components in the reactor trip system demonstrates that the component is capable of performing all required safety functions.
2.
Regarding Position 3. 1.2, your letter of January 2, 1985, indicates that nine vendor recormendations still require review.
Please confirm that this review has been completed for Unit 1 and that appropriate procedure revisions have been completed.
3.
Regarding Positions 3.2. 1 and 3.2.2, your letter of November 7, 1983, committed to submit a statement by August 1, 1985, confirming implementa-tion of these positions for Unit 1.
Please ensure that the post-maintenance testing required of all safety-related components by such implementation, will verify the capability of components to perform all required safety functions.
In addition, please explicitly confirm in your forthcoming August 1, 1985 submittal, that post-maintenance testing will verify this capability.
4.
Regarding Position 4.5. 1, your letter of January 24, 1985 (Enclosure 2,
paragraph B), states that "...on-line, independent, functional testing of the undervoltage and shunt trip features is performed in Modes 1
through 4, after maintenance, in accordance with STP I-33C."
Please indicate the minimum frequency of breaker maintenance.
This is needed to verify that the individual functional testing will be performed "on-line" in Modes 1 through 4, as well as during refueling outages.
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