ML20126E642
| ML20126E642 | |
| Person / Time | |
|---|---|
| Site: | Palisades, Big Rock Point File:Consumers Energy icon.png |
| Issue date: | 09/13/1972 |
| From: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Haueter R CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| Shared Package | |
| ML20126E644 | List: |
| References | |
| NUDOCS 8102170736 | |
| Download: ML20126E642 (2) | |
Text
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ATOMIC ENERGY COMMISSION C
DIRECTOR ATE OF REGULATORY OPERATIONS k4 tis en [
REGION lli 799 ROOSEVELT ROAD ygg,,gpgosg GLEN ELLYN, ILLINOIS 60137 (312) 858 2660 Septenber 13, 1972
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Consuncro Pover Company Docket No. 50-155 ATIN: Mr. Robert L. IIauctcr Docket No. 50-255 Electric Production Superintendent - Nucinar 212 Ucot Michigan Avenue Jackson, Michigan 49201 Cent 1ccen:
Thank you for your letter dated August 9,1972, in responce to our Ictter of June 251, 1972, informing us of your situation concerning our requcet for your verifications that valves important to nucicar safety installed or to be ins,talled at pour facilities moet the mininua vall thictatesa requirccents of the specified codco, standards, and procurencnt specif1-cations.
The cecond paragraph of your August 9.1972, Ictter relates to "various possibic neans of determining the adequacy of cast steci valvo uall thickness" vhereac our June 29,, 1972, 1ctter deco not discriminate between-cast and forced velve manufceturing nothods. Therefore, sny valvo vall thickncos verification proi; ram nuot include forged valven sa well as cast vc1ves unleco:
(1) doc.unentation is availabic at the Eite to verify that forced valv'e dinencions were checked relative to eachined arcan after l
final machining, and/or (2) valva dravings are avcilahic at the site to demonotrate that any internal =achining operation could not have encroached l
upon the ninirum wall thichness of the pressure-retaining boundary of the forced valve body.
l P.ctarding tho third parcgraph of your August 9,1972,1ctter, it should be noted that our June 29 Ictter pointed out that our concern stems from recent dicciocures that valves have been found to have vall thicknenses belov the minimun specified requiremento. Uith this in mind, you say vish to reviev your copy of an AEC information report identified as
" Reactor Construccion Experience (RCE) 72-2."
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2-September 13, 1972 Consumers Power' Company In paragraph tuo of your Ictter you state that you'will inforn us of the '
'j dctnjic and evaluations of your invectination of the appropriateness of various pocsibic ceans of determining the adcquacy.of wall' thicknesses of valves installed in operatinD P ants, as quickly as this information l
is availabic but not later. than 90 days. Consequedtly, we~have no further questions at this ' time but idIl expect to receive additional correspondence, dealing with the information requested in our June 29, 1972, letter on, or before, November 9,1972..
I Your cooperation with us is appreciated..
Sincercly yours, Boyce H. Grier Regional Director bec w/1tr dtd 8/9/72:
I J. G. Keppler, R0 R. H. Engelken, RO H. D. Thornburg, R0 J. B. Henderson, RO P.' A. Morris, R0 A. Giambusso, L RO Files DR Central Piles l
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Local PDR NSIC DTIE OGC, Beth, P-506A i
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