ML20086F069
| ML20086F069 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom, Limerick, 05000000 |
| Issue date: | 07/15/1977 |
| From: | Boyer V PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| Shared Package | |
| ML20086F058 | List: |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, NUDOCS 8312120477 | |
| Download: ML20086F069 (2) | |
Text
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( PHILADELPHIA ELECTRIC COMPANYJ 2301 MARKET STREET PHILADELPHIA. PA.19101 12 85) 841 4 5C0 V.S.8 OYER vies.m iore
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Mr. Boyce Grier, Director Offico of Inspection and s forcement, Region I g3 United States Nuclear i>Matory Co nission 631 Park Avenue King of Prussia, PA 19406
Subject:
Interin Ramrt for li-erich Generating Station helding Laficiencias on Er_ teds 1L10 Construction Pernit Noc.106 c.nd 1Cf7 Files CAL 2-10-2 (C J d3)
Reference:
Telecan Renort of Deficiency fron H..R. Wo.iters PEJO to R. L:Jaughy US20-I3 Region I dated June 16, 1977
Dear Mr. Grier:
In co::rpliance with 10073 Part '50 55(e)., wo are hereby subuitting this intoric re, ort en the cubject velding deficioney. Lo Philndelphia Electric Co:nuany <liceussed this itars by telephens wit?. the U3nC Pedon I Office of Inspection and Enforcement on June 16,1977 e.fter it was datornined that this nsy be a reportable deficiency as defined by 100?R Part 50 55(o).
1.
DascriutionofDeficiency.[
It has been datornised ttat vendor fabricated steel enbods designed to have full oenetration valds have less thn full penetration due to 4
improper veld ;oint preparation. S e cr. net mnber, identification, and location of the sumect ecbeds is the subject of en investigation, the results of which will be addressed in our final report.
2.
Corrective Action.
A.
Work was stopped at the vendor's facilit5es on onbeds that require full ponntration velds until two additional Bechtel
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Dr.
inspection hold points were establiched to assure proper veld joint preparation and to witnesa the vol=etrio nondestructive exa:*inations of the full penetration volda. Vendor personnel have been instructed in the proper inter;retation of fa3
.velding sy=bols used on design drawings to designate full
, c, 3.
penetration velds.
8312120477 771005 PDR ADOCK 05000277 g
PDR t
rir. Boyce Grier, Director Office of Inspection and.:.nforcement, i.egion I
-2 B.
A hold has been placed on the installation of embeds requiring full penetration welda until satisfactory disposition of each embed is determined.
C.
To date one hundred twenty (120) vendor fabricated steel e= beds identified as nonconfo=ing have been returned to the vender for rework and reincpection to ascure compliance with purchase order require:cnts.
D.
To date twenty-nino (29) ir tallol c; beds with cartial penetration wolds whoro full penetration velds were called for have boon evaluated by 20chtcl Project Engincoring using actual loads and the "as built" usld configuration.
"ecause the actual locds are loca than the loada aseunod during preWhary-dosip, thoco twonty-nino nonconforming seldrents have been found adequnte by enalycis. lhe vendor supplied information on actual joint con 11g.u ation used and destructive exa=1 nation of three intricated embeds verified the vendor's data regarding weld joint configuration and weld penetration.
3 Evaluation of 39fatv hulications.
There will be no adverse safety icplications ainee the rework or engineering evaluation will ensure that embeds fabricated to date are structurally adequate.
4.
Schedule for Submitting Finc.1 Pnm rt Investigations are continuing to further identify the scope of this deficiency. Because of the quantities, different types and various locations, we expect that this investigatics will take considerable ti=e and effort.
L'e will e.dvise you in sixty days of our progress toward submittal of a final report.
Sincerely,
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cc Dr. Ernest Volgenau, USNRC
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bec: Mr. R. Elias, Bechtel Mr. H. B. Winitsky, In care of Bechtel V. S. Boyer D. Marano J. S. Kemper R. A. Mulford E. J. Bradley G. White E. C. Kistner J. J. Clarey H. R. Walters/ Local File J. M. Corcoran W. J. Johnson /R. H. Zong MPR Associates
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