ML20099H523

Applicant Exhibit A-116,consisting of Forwarding Response to Violations Noted in Insp Repts 50-352/77-12 & 50-353/77-12 on 771018-20.Corrective Actions:Field Welds on 4 RHR HX Support Structures Reinsp

ML20099H523
Person / Time
Site:	Limerick
Issue date:	05/07/1984
From:	Boyer V PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
OL-A-116, NUDOCS 8411280177
Download: ML20099H523 (4)

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-1 PHILADELPHIA ELECTP.lC COMPANY 1

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.'3cyce Grier, Director

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Office of Inspeccion and Enforce =en:, Region I 631 Park Avenue King o f ? us sia, PA 19406

Subject:

USNEC II: I Letter dated Nove:bar 9, 1977 Re: Site I: spec:fon.of Oc:ober 1S-20, 1977 Inspection leper: Nos. 50,352/77-12, 50-353/77-12 Li=e'ric'd Genera:ing S t a:Lo=, Units 1& 2 File:

'. QUAL 1-2-2-1 (77-12).

OUAL ~1-2-2-2 -(7 7-12)

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I response to the subjec: 1e::e: regarding a: 1:e= ide::ified during the N?.C visi: to L1=erick Ge erating S a:Los - Units 1 '. 2 V

on Oc:ober 1,8-20, 19 77.f or. insp ection of ec=s::ue:1o= ac:1vi:ies g

au herized by NRC Lice =se Nos. C???.-106 and -107, ve :: ass =1:

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herevi:h the fclieving:

A:hach=e=t I - ?.e s p o ns e t o A; p endi

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. Should you have a y' questions co:cerning i:hese 1:a=s, we'vould be pleased to discuss,the='vi:h you.

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Reso7:se te N : ice of Vi:lation g..w

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10 C?R 50,, Appendix 3, Cri:eric V,

states,,1: par:, tha:,

" Activities affecti=g quali:y shall be prescribed by docuse::ed ins::uccicas, procedures, c drawings, of a type appropriate to the circu=s:ances and shall be acce=plished is accordance vi:h these ins:::c: ions, procedures, or. drawings...".

Paragraph D6.4 of the Quality Assurance ? ogra: docuse::ed in the ?SAR sta:es, in part, that "3echtel Constructic:

Depar:=es:...is respensible for cons::uctics of the' plan:

to approved engineering specifications, drawings, and Procedures... I,

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'3ech:el Specification C-63, Revision ~2,*an app' roved J'

' engineering s p e'cif i c a t io n, states tha: field velding and inspec:ics of s:: c: ural s: eel shall be in accordance vidh require =ents of the A=arica: Welding Socie:y 5::uctural

. (o, Welding Code D4;1-72.vi:h re. visions 1-73 and 1-74 Par:

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6.5.1 of.this Code s:stes tha: all velds shall c:r f or=,:=. the equire=es:s of the Ccde and to :he detail drawings.

Cos::ary to :he above, as of Oc:cher IS, 1977, s::ue:::al v'elding, an ac:ivi:y.affec:ing quali:y, was no: perfor:ed is accordance wi:h approved instructions, procedures, or drawings

' ~ vhich'resulted is the f ollowing conconf or 'ing.ields'.-

bea= clip ~ angles'in Area 17 of Cai: 2 q.

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, Two upper bracke:

. vere fasta=ad to'vall.e= beds with* fille velds he full thickness of the base =etal which e' ceeded the require -

=est of Part 2.7.1.2(2) of AWS-D1.1 14=1:1:3 hese velds

. to 1/16 inch less than the base =e:a1 chickness.

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b.

The upper bracke:. south brace 1: Area 17 of V:1: 2 was

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a:: ached to its gusse: pla:e with a flare. bevel. veld a:

,'. he rolled edge of.:he t ce i=s:aad of 1/4 inch

, fille: veld as,specified on 3ech:el de:411 dravings No.

. C41A-291-4.

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Two lover supper: bea: clip angles in Area 16 cf the C:1:

1 were f as:esed to vall embeds vi-h 5/16 inch or less fille: velds instead of 3/8 inch fille: velds as

.specified on 3ech:e1 detail.dravi=g No. C41A-292-4.

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Corree:ive steps which have heen take: 'and resul:s J. achieved :

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All field velds e.. he f our.(4) -IER Eeat.excha=ger.-.

suppor: s::ue:ures were reinspected and 3echtel NC?.

===bers 2970, 2971, 2972, and 2973 were issued ide :ifying deficiencies-found.

It is anticipated tha: resolution of these findings will te-

.acco=plished by April 1,

1978.

b.

The vaIds"in question vare initially inspec:ed by 3echtel~QC engineers dur1=g the period oc:che 2,

1975 to Ju==

10, 1976.

Since that period,'s represen:acive sa=ple of inspectio:s perfor=ed by;.,rhe inspec:c:s. involved have been reinspected.

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Corrective steps take to av'oid further 1:e=s'of

.:osco=p 1ance:

The Le' ad Quality Co::rol k'elding Ingisse:.co ducted-a.

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. - a class c=.Nove=ber 15, 19.77.to re-isstrue:

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i=spectors in their ' responsibility-to. verify

. h-co=plia:ce v'ith specifica:Lo= a:d drawing require-

=ents.

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