ML19319A949

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Summary of 720428 Telcon Between Aec,B&W & Util Re 720425 Investigation of Thermal Shield,Vibration Data & Tests, Hydraulic Flow Tests & Steam Generator Info.Meeting Changed from 720525 to 720524
ML19319A949
Person / Time
Site: Oconee Duke Energy icon.png
Issue date: 05/10/1972
From: Peltier I
US ATOMIC ENERGY COMMISSION (AEC)
To: Deyoung R
US ATOMIC ENERGY COMMISSION (AEC)
Shared Package
ML19319A945 List:
References
NUDOCS 7912300219
Download: ML19319A949 (2)


Text

C yay 1 0 52 Docket Tio. 50-269 i d Vater Reactmrgiput;nedBy R. C. DeYoung Assistant Director for Pressur zeA. Schw 1sliacudTE

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POWER COMPANY CONCERNING TELECON BETWEEN DRL, DRS, CO, B&W AND D ROBLEMS ON OCONEE APRIL 28, 1972 Investination'at Site f the devel pins on Tuesday, The thermal shield was lif ted af ter removal o e

All devel holes showed some enlargenent and the April 25, 1972. horizontal narks on the spacer pads.The shield was repla It ld be replaced.

clear on the spacer pads.doval pin which had backed out during ent.

appears that the pins experienced a bending nonhield and the lo Inconel debris was found between the thereal s Debris w plate which normally has a nine mil clearance.Inconal debris pressed the thermal shield on the bearing surface.

surf aces was nearly 1/16" thick.

fd' Oconee Vibration Data

~

k ood. The' accelerometer Vibration data from the Oconee accelerometers 1oo s gd against a package was shipped to Barberton and compare the systen is working satisfactorily.

I

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Vibration Tests _

ted on April 27, 1972 at Vibration tests on the lower flow distributor starShaking upleted.

There was nothing new to report here.

Barberton for imprints on the Barberton.

i The Oconee internals will be chipped back to existing voar on May 2,1972.

l 0ther Activities _

have had experience with thermal B&W has cet with a number of consultants who Eartog (MIT) etc., and in l

fix and would like to meet general they agree that the thermal shielB&W fe I

with AEC in Bethesda on May 25, f;

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........J-...-......... OD%ERNMENT PRS' TING prg omr,

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7 s.-

a 7 !R..C.;DeYoung flay 101972 Uydraulic Plow Tests _

i B&W B&W hydraulic flow studies are now underway and have a high prior ty.

l is instrumenting the next test at this time.

-Steam Generator _

h About 1500 spot faces have been machined on steam generator A tub Progress is good and they expect to complete d to the original the new depth (0.19 inches).

machining by the end of May.. Drillings are being reference

}ube sheet clad surface contour to thke care of I

l l was delayed Since this telecon it was learned that shipping the interna sB&W has made the The striks has now ended.

by a strike at Barberton. decision to ahip only the lower structure for r repair the shield at the Oconee_ site.

/

24, 1972.

The meeting on May 25 has been changed to May People participating in the conference call were:

AEC B&W Duke J. Henderson, RO K. Canady W. Reinnuth, RO

. 6 p21ynych J. Valker D. Lange, DL C. Snyder S. L. Blackley R. Steinke A. Schwencer DL R. Ucoker I. Peltier, DL W. Fansse Original Signed by Irving A.Peluer

' ).

I. A. Peltier, Project Leader Pressurized Water Reactors Branch No. 4 Directorate of Licensing

1. A. Peltier, DL E. J. Bloch, DR J. Murphy, DL cc:

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-5. R. Ranauer, DE H. Schierling, Dh Ogm b

1 I

O O

.E. C. Case, DLL R. Fraley, ACRS I

i d

.A. Ciambusso. DL M. Shaw, RDT I

L. Rogers. DRS-A. Pressesky, RDT

.F. Schroeder DL_

.R. Engelken, R0 (4)

DISTRIBUTION RP Assistant Directors

_ Docket

.DRS Assistant Directors PWR-4 Reading DRL Reading

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PWR Branch Chiefs i

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n. w. uec==r, uu DL:PWR-4 DL:P 'R_

c omer >

IAPel

emi ASchwencer-.

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