ML17305A979
| ML17305A979 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 07/31/1990 |
| From: | Conway W ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML17305A980 | List: |
| References | |
| NUDOCS 9008070069 | |
| Download: ML17305A979 (6) | |
Text
O'LERATED D TMBUTION DEMONS RATION SYSTEM
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'EGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS) ar Power R
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SUBJECT:
- Forwards, "Conceptual Design for Palo Verde Nucle Generating Station for Diverse AFW Actuation Sys gbAFAS)."
DISTRIBUTION CODE:
AO55D COPIES RECEIVED:LTRi ENCL Q SIZE:
3 + 3 C2 TITLE: OR/Licensing Submittal:
ACCESSION NBR:9008070069 DOC.DATE: 90/07/31 NOTARIZED: NO DOCKET FACIL:STN-50-529 Palo Verde Nuclear Station, Unit 2, Arizona Publi 05000529 STN-50-530 Palo Verde Nuclear Station, Unit. 3, Arizona Publi 05000530 AUTH.NAME AUTHOR AFFILIATION CONWAY,W.F.
Arizona Public Service Co.
(formerly Arizona Nu RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control D
NOTES:Standardized plant.
Standardized plant.
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ILE EXTERNAL: LPDR NSIC NOTES:
01 RECIPIENT ID CODE/NAME PD5 LA PETERSON,S.
INTERNAL: ACRS NRR/DLPQ/LPEB10 NRR/DST/SICB 7E COPIES LTTR ENCL 1
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1 RECIPIENT ID CODE/NAME PD5 PD TRAMMELL,C.
NRR/DEST/ESB 8D NRR/DOEA/OGCB11 NRR/DST/SPLB 8D OGC/HDS1 RES/DSIR/EIB NRC PDR COPIES LTTR ENCL 3
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NOTE TO ALL"RIDS" RECIPIENTS:
A D
D PLEASE HELP US TO REDUCE WASTE! CONTACT THE DOCUMENT CONTROL DESK, ROOM Pl-37 (EXT. 20079) TO ELIMINATEYOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!
TOTAL NUMBER OF COPIES REQUIRED:
LTTR 25 ENCL 19
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Arizona Public Service Company P.O. BOX 53999
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PHOENIX, ARIZONA85072-3999 WILLIAMF. CONWAY EXECUTIVEVICEPRESIDENT NUCLEAR 161-03369-WFC/RAB/KLMC July 31, 1990 Docket Nos.
STN 50-528/529/530 Document Control Desk U.
S. Nuclear Regulatory Commission Mail Station Pl-37 Washington, D.
C.
20555
References:
1)
Letter to U.
S.
NRC from J.
G. Haynes,
- APS, dated March 13, 1987.
Subject:
PVNGS Schedule for Implementation of the ATWS Rule (161-00074).
2)
Letter to U.
ST NRC from W. F.
- Conway, APS, dated August 6, 1989 'ubject:
PVNGS Implementation of the ATWS Rule (161-02181).
3)
Letter to U.
S.
NRC from W. F.
- Conway, APS, dated October 31, 1989.
Subject:
Implementation Schedule for the PVNGS Diverse Scram System-10 CFR 50.62 (ATWS Rule)
(161-02561).
Dear Sirs:
Subject:
Palo Verde Nuclear Generating Station (PVNGS)
Unit's 1, 2 and 3
PVNGS Diverse Auxiliary Feedwater Actuation System-Conceptual Design and Implementation Schedule for ATWS Rule, 10 CFR 50.62 File: 90-056-026
- Enclosed, for your review, is the conceptual design for the PVNGS Diverse Auxiliary Feedwater Actuation System (DAFAS). Reference 1 provided APS's initial commitment concerning the implementation of the DAFAS as prior to restart from the third refueling outage for PVNGS Units 1, 2,
and 3.
Reference 2 provided a tentative, expedited implementation schedule for Unit 3 as prior to restart from the second refueling outage.
Due to the scope of the modification required for DAFAS, implementation for Unit 3 is now expected to be performed prior to restart from the third refueling outage.
Therefore, the PVNGS DAFAS implement-ation schedule is as follows:
Unit 3
- Prior to nq~
9008070069 900731 PDR ADOCK 05000528 P
PDC I
restart from the third refueling outage.
Unit 1 - Prior to restart from the third refueling outage.
Unit 2 - Prior to restart from the third refueling outage.
geEX
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Document Control Desk U.
S. Nuclear Regulatory Commission Page 2
161-63369AM/RAB/KU'C July 31, 1990 In addition, as discussed in Reference 3, Unit 2 Diverse Scram System (DSS) has been installed and is functioning as required.
The DSS implementation schedule for Units 1 and 3 remains as follows:
Unit l - Prior to restart from the third refueling outage.
Unit 3 - Prior to restart from the second refueling outage.
If you have any questions concerning this matter, contact Mr. R. A. Bernier at (602) 340-4295.
Sincerely, WFC/RAB/KLMC Enclosure CC:
J.
B. Martin S.
R. Peterson C.
M. Trammell D. H.
Coe A. C. Gehr A. H. Gutterman
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