ML19322A620
| ML19322A620 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 06/03/1971 |
| From: | Jennifer Davis US ATOMIC ENERGY COMMISSION (AEC) |
| To: | Thies A DUKE POWER CO. |
| Shared Package | |
| ML19322A606 | List: |
| References | |
| NUDOCS 7911210692 | |
| Download: ML19322A620 (2) | |
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h r: zo rATzs ATOM.C :.CRGY COMMISSION
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REGION 84 = $U4TE $18 230 PE ACHTREE STR EET, N CA T M w E ST T
a $2H537 Q '. J AT LANT A. GEORGI A 30303 1
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June 3, 1971 Duke Power Company Atta:
Mr. A. C. Thies, Vice President Production and Operation
?r<er Building h22 South Church Street
'ar13tte, North Carolina 28201 M ntletet.:
... Letter relates to the discu=sion Mr. R. 2. Oller of the Division of
- cplir.nce, Region III office held with Mr. W. C. Buskey of the Eatecek and
'.iilecx Ccapany and Mr. C. A. Robinson of your staff at the conclusion of
- e pressure vessel inspection cecducted on April 1, 1971, regsrding the construction activitie.s t.uthorized by AEC Construction Permit No. CPPR-35 for the Oconee No. 3 faa. ity.
As noted during the discussion, appcrent deficiencies were identified in-volving items not in conformance with a statement in the Final Safety j Analysis Report. The items are as follows:
The Final Safety Analysis Report, Volume 1, Section h.1.3, " Codes and Classifications," paragraph h.1.3.1, " Vessels," states - part, "The design, fabrication, inspection and testing of the reactor ve< & sad closure head,
. is in accordance with the AS'4E Boiler and Press.:J
- essel Code,Section III, for Class A vessels."
1.
Paragraph IX-226(A), ASM2 Section III, requires that the manufacturer shall maintain a system of material centrol adequate to assure identity of all material used and that it is acceptable to the applicable speci-fication, prior to the start of =anufacturing operations.
Centrary to this requirement, errors and emissions were found in the specimen heat treatment data reported by the forging supplier, Klockner-Verke, A.G., for the reactor vessel, closure head flanges and icver torus rint,. 'Chere was no indication that the heat treatment data had been reviewed for acceptability by B&W, Mt. Vernon, personnel, i
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i Duke Power Co=pany June 3, 1971 2.
Pr.rngraph IX-333(3), AS:.C Sectica III, sets out the require =ents for the location of penetrc=eters when the dansity of a radiog-eph fi1=,
- c. cross a veld, variec = ore thaa minus 15 or plus 30 par:e.t. The fil:
density for the velda joining the racirculation noznle to the shell vere found to rance frc= a 1cv of 2.0 to a ' igh of 4.0 across the witc n
of the veld. Additional penetrnneter vare not used as required by the coda.
";he abcve conconfot-.ances indict.te tht ?b"'s G ;r:gren. u: 1 plenente c, is c)pn.nntly it.nicqve c to..:ure e G are c.? to c:ds 1:2.u; re su n, r.1 ta, \\;:::
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- orials ed cc..pcssat:2
- c lch24 L/ t.:eir subcuppli2rs, conf:r;; tr.
all rt: ects to the p_rchasa docu=ent:.
E 2.s e revido us, vi-Qi.. ~;,C d:y:,, via ; yc.r comner.ts Ocac:rning these items
- '1 ex/ steps vnich have tean or vill 'Je taken to correct them, Lnd to mini-
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s tec;.rrences. icur r5 ply cr.cr.1
- gha:1.::c, ir. particular, a:r/ charges 4.a.ve been er vill te Icf.e to y:t qua'ity nasurance progras.
..dd you have te queseions <:::.eemns the =a,ters discus.:sd in this.etter, yon c y ec r.unicat a di. ectly vith te.i:; cffice.
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J. B. Hendersen, CO:HQ (h:
A. Giambusso, CO:HQ L. Kornblith, Jr., CO:HQ R. H. Engelken, CO:HQ F. J. Iong, O:II V. L. Brevnlee, CO:II R. E. 01'.2r, CO :III P
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