ML20136C048

Site Problem Rept 149 Re Difference in Actual Range Between Hot & Cold Marks in Constant Load Supports of Reactor Coolant Pumps & Specified Range.Startup Problem Repts 2299 & 2436 Re Reactor Coolant Sys Encl

ML20136C048
Person / Time
Site:	Crane
Issue date:	11/08/1977
From:	Pletke L, Rise D, Rogers L BABCOCK & WILCOX CO.
To:
References
TASK-TF, TASK-TMR 149, PROB-771108, NUDOCS 7909140296
Download: ML20136C048 (4)

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REPORT TRAllSM177AL

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Change Control

_ For Distribution CO:1 TRACT 110:

620-00 0 6 TO:

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C STATUS CODE

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F. R. Taist - TOLEDO w.y. o c w o w J. R. Bohart - Inti. Support J. L. Doni.cIl - 0FR B. A. Karrasch - Plant Integration Attached is one copy of Site Probic.m Report No.

/y9 which was procesr.cd on Contract 620-00 o5 Future contracts have been reviewed for the potential of a similar probicm. This probico su/is not considered applicabic to other contracts REMARKS:

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D L L C r; i l' I N n of PkoCLitu In reference to Problem Report #2299, the RCP Constant Lond Supportn were renet

(! hot ($32") conditions to.: 917 of the cold to hot travel.

Following cooldown, all 8 supporta had travelled ruct the cold cetting an indicated (Problem Report

1. 2h36). The teacured dintance between the hot and cold marka in 3-5/8"; the n name plate data specifica a,5" rance.

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2. Advice correct method for cetting and the hot t.nd cold acceptance criteria PC50LU110c:

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In reference to Problem Report #2299, the RCP Constant Load Supports were reset 6 hot (532 ) conditions to_< 91% of the cold to hot travel.

Following cooldown, all 8 supIsorts had travelled past the cold setting a.

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1. 2h36). The censured distance between the hot and co.

c is 3-5/8"; the tj name plate data specifies a 5" range.

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Bob Willia:r,on and Steve Brown have been contacted IURTHER AC110X RECOMMEhDED BY SITE PERSONHEL:

1. Please advise what is the correct rance

2. Advice correct method for setting and the hot and cold acceptance criteria RESOLUTION./2E/P;E ZEFL 2~ 7b FWGE G, ITEM d

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