ML19305B029
| ML19305B029 | |
| Person / Time | |
|---|---|
| Issue date: | 02/14/1980 |
| From: | Carroll D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Wright G ILLINOIS, STATE OF |
| References | |
| NUDOCS 8003190052 | |
| Download: ML19305B029 (2) | |
Text
a UNITED STATES IlC g
',j 8
NUCLEAR REGULATORY COMMISSION O
e REGION lil O[
C 799 ROOSEVELT ROAD o
GLEN ELLYN, ILLINOIS 60137 FED 1 + UK State of Illinois Department of Public Health ATTN:
Mr. Gary N. Wright, Chief Division of Nuclear Safety 535 West Jefferson Street Springfield, IL 62761 Gentlemen:
The attached IE Circular
.0.
79-25, Supplement A, titled " Shock Arrestor Strut Assembly Interference" was sent to the following licensees on January 31, 1980, for information:
American Electric Power Service Corporation Indiana and Michigan Power Comoany D. C. Cook 1, 2 (50-315, 50-316)
Cincinnati Gas & Electric Company Zimmer (50-358)
Cleveland Electric Illuminating Company Perry 1, 2 (50-440, 50-441)
Commonwealth Edison Company Braidwood 1, 2 (50-456, 50-457)
Byron 1, 2 (50-454, 50-455)
Dresden 1, 2, 3 (50-10, 50-2 50-249)
La Salle 1, 2 (50-373. 50-374)
Quad-Cities 1, 2 (50-234, 50-265)
Zion 1, 2 (50-295, 50-304)
Consumers Power Company Big Rock Point (50-155)
Miula.,A 1, 2 (50-329, 50-330)
Palisaaes (50-255)
Dairyland Power Cooperative P
t f\\he LACBWR (50-/>09)
Detroit Edison Company Q
Fermi 2 (50-341)
Illinois Power Company Clinton 1, 2 (50-461, 50-462)
)
8003190 0 h
a.
r-e State of' Illinois' f [D j.
,j,,(
Iowa Electric Light & Power Company Duane Arnold (50-331)
Northern Indiana Public Service Company-Bailly (50-367)
Northern States Power Company Monticello (50-263)
Prairie Island 1, 2 (50-282, 50-306)
Ohio Edison Company Erie 1, 2 (50-580, 50-581)
Public Service of Indiana Marble Hill 1, 2 (50-546, 50-547)
Toledo Edison Company Davis-Besse 1 (50-346)
Union Electric Company Callaway 1, 2 (50-483, 50-486) i Wisconsin Electric Power Coinpany Point Beach 1, 2 (50-266, 50-301)
Wisconsin Public Service Corporation i
-Kewaunee (50-305)
Sincerely, j
zi
-bC<t b$d orothy E. C roll, Acting Chief Administrative Branch E
Enclosure:
IE-Circular No. 79-25, Supplement A cc w/ enc 1:
Mr.-D. W. Kane, Sargent & Lundy Central Files Reproduction Unit hTC 20b Local-PDR 0
k" D
l ctt
r_
- a SSINS No..
6830 Accession No.-
UNITED STATES 7912190658 NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D.C.
20555 January 31, 1980 IE Circular No. 79-25 Supplement A SHOCK ARRESTOR STRUT ASSEMBLY IN'iRFERENCE On December 20, 1979 licensee, and holders of construction permits for nuclear power reactors were advised by IE Circular No. 79-25 of a potential problem with Bergen Paterson part 2f40 Strut Assembly used in combination with Pacific Scientific Company mechanical shock arrestors sizes 15K, 50K and 120K.
Bergen Paterson has conducted a detailed review of their records and identified the following nuclear power plants as being affected by the above problem:
Shoreham #1 ihree Mile Island #2 Shearon Harris #1, 2, 3, & 4 Watts Bar #1 Virgil C. Summer #1 Waterford #3 Limmerick #1 & 2 During the course of this investigation Bergen-Paterson identified an additional problem with the 2540-120 Shock Arrestor Strut Assembly.
The assembly may not be acceptable for applications up to the published load of 120,000'Ibs.
Preliminary load testing has indicated that the maximum accept-able load may be only 112,000 lbs.
All Nuclear Power Reactor licensees and holders of construction permits are advised to review their systems for any Bergen Paterson part 2540-120 Shock Arrester Strut Assembly.
Application of these assemblies should ue analysed, existing calculations reviewed, and if necessary, recalculated to determine whether loads exceed 112,000 lbs.
Strut' Assemblies for applications in excess of 112,000 lbs should be replaced by larger units or other acceptable resolution should be made.
1
/
IE. Circular No. 79-25 Supplement A Enclosure
?
January 32, 1980 RECENTLY ISSUED IE CIRCLLARS Circular Subject Date of Issued to No.
Issue 80-02 Nuclear Power Plant 2/1/80 All holders of Reactor Staff Work Hours OLs including research and test reactors, and cps 80-01 Service Advice for GE 1/17/80 All licensees of Induction Disc Relays nuclear power reactor operating facilities and holders of nuclear power reactor cps 79-25 E5cok Arrestor Strut 12/20/79 All licensees and Assembly Interference holders of power reactor cps 79-24 Proper Installation and 11/26/79 All Holders of a Calibration of Core Spray Power Reactor OL or Pipe Break Detection CP Equipment on BWRs.
79-23 Motor Starters and 11/26/79 All Power Reactor and Contactor: Failed Operating Facilities to Operate and Holders of Reactor cps 79-22 Stroke Times for Power 11/16/79 All Power Reactor Operated Relief Valves Operating Facilities and all Utilities having a CP 79-21 Prevention of Unplanned 10/19/79 All holders of Power Releases of Radioactivity Reactor Ols and cps 79-20 Failure of GTE Sylvania 9/24/79 All holders of Power Relay, Type PM Bulletia Reactor Ols and cps l
7305, Catalog SU12-11-AC with a 12V AC Coil
! 19 Loose Locking Devices 9/13/79 All Holders of Power on Ingersoll-Rand Pumps Reactor OLs and cps 79-18 Proper Installation of 9/10/79 All Holders of Power Target Rock Safety-Relief Reactor OLs and cps