ML17299B207
| ML17299B207 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 04/18/1986 |
| From: | Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | Knighton G Office of Nuclear Reactor Regulation |
| References | |
| TAC-60773, NUDOCS 8604230257 | |
| Download: ML17299B207 (4) | |
Text
REGULA A Y INFORMATION DISTRIBUTI YSTEN (RIDS)
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ACCESSION NBR: 8604230257, DOC. DATE: 86/04/18 NOTARIZED:
NO DOCKET ¹ FACIL:STN-50-MS Palo Verde Nuclear Stationi Unit ir Arizona Publi 05000528 STN-50-529 Palo Verde Nuclear Station.
Unit 2i. Arizona Publi 05000M9 STN-50-530 Palo Verde Nuclear Stationi Unit 3i Arizona Pub li 05000530
-AUTH. NANE AUTHOR AFFILIATION VAN BRUNTiE. E.
Arizona Nuclear Power Prospect (formerly Arizona Public Serv RECIP. NAME'ECIPIENT AFFILIATION KNIQHTON> Q. M.
PMR Prospect Directorate 7
SUBJECT:
Provides resolution schedule for masonry eall evaluation.
Acceptable analysis Sr performance of addi testing or implementation of design mods on masonrg eall thrill be provided bg 861222.
DISTRIBUTION CODE:
A001D COP IEB RECEIVED: LTR ENCL SI ZE:
TITLE:
OR Submittal:
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/TSCB EQ ILE 04 COPIES LTTR E CL EXTERNAL: 24X LPDR NSIC 03 05 EQ8cQ BRUSKEi 8 NRC PDR 02 Pe
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- JANE".'
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Arizona Nuclear Power Project P.o. BOX 52034 e
PHOENIX, ARIZONA85072-2034 April 18, 1986 ANPP-36301-EEVB/WFQ/98.05.
Director of Nuclear Reactor Regulation Attention:
Mr. George W. Knighton, Project Director PWR Project Directorate 87 Division of Pressurized Water Reactor Licensing B
U.S.
Nuclear Regulatory Commission Washington, D.C.
20555
Subject:
Palo Verde Nuclear Generating Station (PVNGS)
Units 1, 2 and 3
Docket Nos.
STN 50-528 (License NPF-41)
STN 50-529 (License NPF-46)
STN 50-530 Masonry Walls File: 86-056-026
Reference:
Letter from E.
E.
Van Brunt, Jr.,
ANPP, to G.
W. Knighton, NRC, dated April 16, 1986 (ANPP-36153).
Subject:
Evaluation of Masonry Walls
Dear Mr. Knighton:
On April 16,
- 1986, ANPP provided a Masonry Wall Evaluation for your information.
Since additional confirmatory items remain regarding the capability of some of these walls, ANPP hereby provides the following resolution schedule:
For Units 1
and 2,
ANPP will provide an acceptable analysis or perform additional test-ing or implement design modifications on the masonry walls by December 22, 1986.
For Unit 3, these activities will be completed prior to initial criticality. In the interim, until such time as these activities are accomplished, ANPP will take compensatory measures'ased on use of assumptions provided by
- NRC, earthquake induced stresses and displacements will remain at or below the appropriate allowable values as long as the ground acceleration does not exceed 0.05g.
Therefore for any earthquake regis-tered at the Palo Verde site having accelerations equal to or greater than 0.05g, ANPP will thereafter commence a normal shutdown to mode 3 of the operating units and perform an inspection of the subject masonry block walls and associated safety related attach-ments.
Prior to resuming operations or ceasing the
- shutdown, ANPP will assure that no functional damage has occurred to those safety related attachments.
Very truly yours, Q.~v dig@
E.
E.
Van Brunt, Jr.
Executive Vice President Project Director EEVB/WFQ/rw Attachments cc:
E.
A. Licitra R.
P.
Zimmerman A.
C.
Gehr a bO+>> 2~
OO528 DOCK 05