ML20085C588
| ML20085C588 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry, Sequoyah, 05000000 |
| Issue date: | 10/13/1972 |
| From: | Gilleland J TENNESSEE VALLEY AUTHORITY |
| To: | Jennifer Davis NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| Shared Package | |
| ML082390163 | List: |
| References | |
| NUDOCS 8307110006 | |
| Download: ML20085C588 (7) | |
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Mr. Jo?, C.
D.: Jin, Director Dirat ernte o f IL. al.. t o :y Ope ra t. io n Unite. f tci itcnic l Ce c 13 3 > ion Rn fo' 11 - Li t e 'l l B
.0, > P : : it rc - Street.
A tl, a tri, Geor *i s
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Th i-is ia f rther rrFro,m to your June 30, 1972, let t er 'm:11:JGo 5 0 "
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- -? % S0-327, ad 30-32S concerning verificatien t!n t thn mil thi 9 ec m:s of cortain. Ive. r.w t the requirrments of sp m iie:. c c.ie cm o c. n O rd s,
ihts renpans. 1 :. confined to our St wne-h ' rlerr Plant only; a ceparate responce hns already been tranc dtted on Brou,n Terry.
I I or t.be Smp?cyah ::ucirnr Plant, the ccope of supply of valvr. can be divided into thanc valves purchased by TVA and those nupplied by Ucsting. house In rexpore.c to cor inquiry, Vestinr;boose v.anwrent han explained thcir progran which they believe enrcine:, the " alternate technique" l
apew :ch : e'e'encc<i in your letter of Juar-31, 1972, for accurinp l
that Lhn vall th icic:n s ; of valves nt th t r.it e are acceptable as recciw d nN that no verification testf. for vall thickness, need to be perferrrd.
A dencriptJaa of the Uar-tinr, house prograa is p,iven in the cnclo::cre. TVA concurs in the Unstinghouse position and requests approval of th m " alternate technique" for neceptance of the '.?usting-house-cupplied valver.
Uith 7 e;;cr,1 to tha '. ]ves purchased by TVA, we have gotten in touch with the wl.' ntwpliers and in gcneral have been informed that, uith the crecgien of one vendor, all r.cnatecturern verify call thickne< nes
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A Ventinc, house Qt'21ity Annt'rance reprenatative docu.c.cnts the acec7,Mee of the product i>y ti.e in u uare e o f ti.
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..5 2rc or the applicale cauen, ottn2crds, nn.1 procurecent r:ecifice.ticrr
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vere routinely chec.nc the cir :nsionni craracteristien of their i,
cesignc inclu,:.r,; vn, ] t e,.neas.
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ins.tec t.icn end the: in.proee r ina.nc ation prior t o cusenb2 v Unless a j
devintJon fron stan& rd detected th" nenLureronts were not rcecrded, n
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Wucti: J :.uae found no ceviatienc from require d vt11 thi c'ne:< at the other cupp]iela.
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Short]y after the Wettir~,hcu;2 f tertigaticn was underve.y, AEC letters i
were iscued anking :.hout Lhe n ailability of v0 1 thicknuso documentation en cast vdven.
Ucstiro:cuL u, seeinc the r.eed fcr r.(re documented evidence th it the vall thickr.ess we checked
.C neceptabic, instructed its Quality Assurance representativer to npecifiedly veriff t he vall thichnesa i
end lict en the Ruulity Relence the direncicr:1 characterirties checked.
j in the case of the ranufreturer of the cnectiened valven, the rininur.
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