ML17305A333
| ML17305A333 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 10/25/1989 |
| From: | Conway W ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML17305A334 | List: |
| References | |
| 161-02523-WFC-R, 161-2523-WFC-R, NUDOCS 8911020138 | |
| Download: ML17305A333 (6) | |
Text
~C CELERATED D
BUTION DEMONS T10N SYFI'EM REGULA
. Y INFORMATION DISTRIBUTI..
SYSTEM (RIDS)
DOCKET 05000528 05000529 05000530 P
I szzE: A+ A D
DISTRIBUTION CODE:
A001D COPIES RECEIVED:LTR C
ENCL TITLE: OR Submittal: General Distribution ACCESSION NBR:8911020138 DOC.DATE: 89/10/25 NOTARIZED: NO FACIL:STN-50-528 Palo Verde Nuclear Station, Unit 1, Arizona Publi STN-50-529 Palo Verde Nuclear Station, Unit 2, Arizona Publi STN-50-530 Palo Verde Nuclear Station, Unit 3, Arizona Publi AUTH.NAME AUTHOR AFFILIATION CONWAY,W.F.
Arizona Public Service Co. (formerly Arizona Nuclear Power RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Con k)
SUBJECT:
Forwards Rev 3 to util justification for continued o eration caused by CEA drop events.
NOTES: Standardized pl,ant.
Standardized plant.
S 05000528 05000529 j 05000530 h RECIPIENT ID CODE/NAME PD5 LA CHAN,T INTERNAL: ACRS NRR/DEST/ESB 8D NRR/DEST/MTB 9H NRR/DOEA/TSB 11 OC/AM 01 EXTERNAL: LPDR NSIC NOTES:
COPIES LTTR ENCL 1
1 5
5 6
6 1
1 1
1 1
1 1
0 1
1 1
1 1
1 1
1 RECIPIENT ID CODE/NAME PD5 PD DAVIS,M.
NRR/DEST/ADS 7E NRR/DEST/ICSB NRR/DEST/RSB 8E NUDOCS-ABSTRACT OGC/HDS1 RES/DSIR/EIB NRC PDR COPIES LTTR ENCL 1
1 5
5 1
1 1
1 1
1 1
1 1
0 1
1 1
1 D
S TOTAL NUMBER OF COPIES REQUIRED:
LTTR 33 ENCL 31
0 D
h I,
la IM
Arizona Public Service Company P.O. BOX 53999
~
PHOENIX, ARIZONA85072<999 WILLIAMF. CONWAY EXECUTIVEVICEPRESIDENT NUCLEAR 161-02523 WFC/RAB/JST October 25, 1989 Docket Nos.
STN 50-528/529/530 Document Control Desk U.
S. Nuclear Regulatory Commission Mail Station Pl-37 Washington, D.C.
20555
Reference:
Letter from W. F.
Conway (APS) to USNRC dated July 27, 1989.
Subject:
Justification for Continued Operation as a Result of CEA Drop Events, Revision 1
Dear Sirs:
Subject:
Palo Verde Nuclear Generating Station (PVNGS)
Units 1, 2, and 3
Justification for Continued Operation as a
Re'suit of CEA Drop Events, Revision 3
File:
89-A-056-026 The referenced letter submitted a Justification for Continued Operation (JCO) of the PVNGS units based on information concerning events in which Control Element Assemblies (CEA) dropped or slipped into the core during CEA motion.
It provided a plan for operation and corrective action based on events and testing which were known at that time.
The discovery of grounded coil assemblies in Unit 2 on October 14, 1989 has caused APS to re-evaluate the operating plans if ground faults are known to exist in CEA coil assemblies and to modify the JCO.
Attached to this letter is Revision 3 of the subject JCO.
Based on a discussion of Revision 2 with NRR and Region V personnel in a phone call on October 20,
- 1989, APS has clarified sections in which the Staff had questions.
Ifyou should have any further questions, please call R. A. Bernier at (602) 371-4295.
Sincerely, WFC/RAB/jle Attachment ot(
PDR A
8 89l025 89'p DOC< 05ppp>28 Q peu
i+i 7
mp 4
Document Control Desk U.. S. Nuclear Regulatory Commission Page 2
161-02523 WFC/RAB/JST October 25, 1989 cc:
J.
B. Martin G.
W.. Knighton T. L. Chan M. J. Davis T. J. Polich (all w/attachment)
i'[
i
,J y
~
I