IR 05000280/1988044
| ML18152B291 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 11/18/1988 |
| From: | Blake J, Economos N NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML18152B290 | List: |
| References | |
| 50-280-88-44, 50-281-88-44, NUDOCS 8812070248 | |
| Download: ML18152B291 (4) | |
Text
. Report-Nos.:
50-280/88-44 and 50-281/88-44
- Lice,tsee: Vitginla Electric.and.Power Company:::
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Docket Nos.:* 50-280 and 50-281 Facility Name:
Surry 1 and 2 J. ~- Blake, Chief 1;..4, 1988 trials and Processes Section Engineering Branch Division of Reactor Safety SUMMARY License Nos.: DPR-32 and DPR-37
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Scope:
This routine, unannounced inspection was in the areas of inservice inspection identified rejectable indications found in certain safety-related socket welds and the resulting evaluation and proposed corrective actio Results: A 11 rejected welds are being reinspected and evaluated by the licensee's Level III Examine Rejected socket welds will be repaired per Section XI requirements under the supervision of the Level III Examiner and the overview of an independent metallurgis The licensee has established control of the inspection and repair of the subject welds, and.has responded positively to the inspector's concern Within the areas inspected, no violations or deviations were identified *
881207024B BB1123 PDR ADOCK 05000280 Q
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REPORT DETAILS
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'1*1*1..... * *., Licensee Employee:?s.. Contt1cted-: :
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. :_**:.:*: *D::* L~ --Benson~ *stati-on Ma~ager.. :L "' ;.~-
D. R. Dodson, Corporate Level III Examiner
- E. S. Grecheck, Assistant Station Manager
- R. J. Hardwick, Jr.., Manager.::Corpqr~te QA J. P. Maciejewski, Manager Corporate ISI/NDE
- G. D. Miller,---l5censee Co.or~:l.i-nator.,. -,,"-
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- J. A. Price, Manager QA, Surry "s-tati on
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D. L. Rogers, Level II Examiner
- E. w. Throckmorton, Inservice Inspection (ISI)/NDE Service Project Engineer NRC Resident Inspector
- W. Holland, Senior Resident Inspector
- Attended exit interview
. Inservice Inspection of Socket Welds Unit's 1 and-2 (73753B)
This work effort was a followup to that documented in Inspection Report No. 280,281/88-39 where the inspector reviewed the licensee's inspection results, plans for repair and observed repairs (grinding) performed on certain weld At the close of that inspection on October 21, 1988, the inspector communicated several observations and concerns to the license During this inspection, the inspector met with site management and the licensee's cognizant engineers at the corporate and site leve During this meeting, the licensee provided the following information on the subject socket welds:
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0 The code of record for the fabrication and testing of socket welds was the USAS B31.1 USA Standard * Code for Pressure Piping, 1967 Edition with winter 1967 Addend Specification NUS-20 Addendum VIII, Field Fab~ication and Erection of Piping, March 8, 1972, was the controlling document for field fabrication, inspection. and testing of these socket weld Subject socket welds were liquid penetrant inspected, as required and the inspection was recorded as a line item on the isometric or weld map, no further NDE information exists on individual welds.
Liquid penetrant examination performed following weld fabrication was used to satisfy preservice inspection requirement /1
In addition, the licensee stated that they had decided to reinspect the rejected we 1 ds using the corporate Leve 1 II I examiner to eva 1 ua te the inspection result This was being done. be<;::aus~ the NOE in~pectors recorded the indications from the PT examination without attempting to interpret/evaluate: -the-i-r.-:f:indings.. *:.We*lds__:-requ.iring: repair.wJll -.be
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repaired under ASME Section.XI-requirements_.;: A: record-h~s, been-'devel6ped on each rejecte-d'weld *.:ta**.*:dfri::uriierit.f.a-brfcat1i'on.. hlstory;**inservice *inspec-tion performed as applicable*, *amount of material removed-from the weld and/or base metal; material thickness following metal removal and welding details if this method,~used to repair.th~, affected.area A consulting metallurgist will oversee the repair effort and participate in the ev~luatio.n of" indicatidnL-.dur:in.g.;: metal:-.remov.ci Also,.,-the 1 ic.ensee indicated that preliminary results from a metallurgical investigation showed the rejectable indications were not service induce The inspector accompanted the licensee's inspection team in Units 1 and 2 to observe liquid penetrant examinations on the seven socket weld listed belo UNIT 2 Weld Line Locat.i on
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Descrietion W-11 2" -CH--397 Base Metal linear forging lap in Seal Injection.
(relevant)
in fitting (SI)
W-13 2"-CH-397,SI Base Metal linear forging lap in (non relevant) fitting NRI W-18 2"-CH-395,SI Weld Metal linear NRI weld ripple W-17 2"-CH-395,SI Weld Metal 1 i near NRI Two linear indications l/16" at weld toe W-11 2"-CH-395,SI Weld Metal Rounded/
Several weld 1 i near ripples; one NRI dimple 1/32" d UNIT 1 W-6 VRA-1-4213,SI Base Metal linear NRI forging lap in fitting W-7 VRA-1-4213,SI Base Metal linear NRI forging lap in fitting
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The procedure used to perform these examinations was NDE-PT-201 Revision The inspector observed the examination and compared it for conformance with t~~ a.f.orementioned procedure in the following areas:
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Specified method, penetrant materials identified; penet'rant rriateriaJ~
analyzed for ha.lo~f~*ni. and' $'1flfur;.. afceiftahle:_.:pre-:~.~~~_trjaf fo;fr- -~~ff~ce;' '
drying time, me.:th99_... 9f.. P~J.1~,t,r,~nt. afipJ;J.c.~,t:1,Q.p;'.:.;pen.~t.t.a.t.t<nt:,.ti;!ll~,~:*. $j~rf ac.~ I*::*..
temperature; so 1 vent_ r~moy_aJ; _9ry:.$urfa.c~_ prior to __ q~vel opj ng; type. of
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developer; examination technique; evaluation technique and reporting of examination result *.
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Examination results and the ev~luations were reviewed and found to be correct *and **accurate~ *:,Th~* in'sp~'ctbr *irifo'rrrt'ed'*the(Tf cerisee* *'that the data from the remaining examinations and the necessary repairs would be reviewed on a future inspectio Within the areas inspected, no violations or deviations were identifie.-
Exit Interview The inspection scope and findings were summarized on November 4, 1988, with those persons indicated in paragraph 1 abov The inspector described the areas inspected and discussed in detail the inspection result No di s.senti ng corrnnents were received from the license Proprietary information is not contained in this repor ',,i *.)..:***