IR 05000424/1984014
| ML20127C866 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 05/02/1985 |
| From: | Blake J, Hallstrom G NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML20127C817 | List: |
| References | |
| 50-424-85-14, 50-425-84-14, NUDOCS 8506240036 | |
| Download: ML20127C866 (16) | |
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3 Rico UNITED STATES
-[5 NUCLEAR REGULATORY COMMISSION
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REGION 11
j 101 MARIETTA STREET, N.W.
ATLANTA GEORGI A 30323
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Report Nos.: 50-424/85-14 and 50-425/85-14
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Licensee: Georgia Power Company P. O. Box 4545 Atlanta, GA 30302 Docket Nos.: 50-424 and 50-425 License Nos.: CPPR-108 and CPPR-109
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Facility Name: Vogtle 1 and 2 Inspection Conduc ed: April 15 - 19, 1985 Inspector:
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1FF str Date' Signed
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Approved by:
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Talie, Section Chief Date Signed
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E i ering Branch 0v ion of Reactor Safety
SUMMARY j
Scope:
This routine, unannounced inspection entailed 45 inspector-hours on site in the areas of construction progress, previous enforcement matters, reactor coolant pressure boundary piping, other safety-related piping and licensee identifieditems(50.55(e)).
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Results: Oce violation was identified
" Failure to follow procedure for control
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of welding consumables", paragraph 7.b.(4).
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8506240036 850507
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$DR ADOCK 05000424
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REPORT DETAILS 1.
Persons Contacted Licensee Employees
- D. O. Foster, Vice President and Project General Manager
- H. H. Gregory, General Manager, Vogtle Nuclear Construction Department
- M. H. Googe, Project Construction Manager
- E. D. Groover, Quality Assurance (QA) Site Manager
- C. W. Hayes, Vogtle QA Manager
- G. A. McCarley, Project Compliance Coordinator
- B. C. Harbin, Manager, Quality Control (QC)
- S. D. Haltom, QA Engineering Support Supervisor
- J. L. Blocker, Assistant Manager, QC
- T. L. Weatherspoon, Assistant Manager, QC
- R. L. Davis, Senior QA Engineer
- A. H. Lankford, QC Section Supervisor - Civil
- F. Page. QC Section Supervisor - Construction
- D. M. Fiquett, Unit No. 2 Field Manager
- J. R. Downs, Contract Manager - Construction
- R. E. Duke, Section Supervisor - Construction
- C, R. Brewer, Assistant Mechanical Section Supervisor - Construction
- L. Glenn, Quality Concerns Manager Other licensee employees contacted included construction craftsmen, techni-
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cians, and office personnel.
Other Organizations
- D. L. Kinnsch, Project Field Engineer, Bechtel Power Company (BPC)
- D. W. Strohman, Project Quality Assurance Engineer, BPC
- S. Pietrzyic, Assistant Project Field Engineer, BPC K. W. Caruso, Welding Engineer, BPC
- D. Wieland, Site Manager, Westinghouse Electric Corp.
- C, R. Smaney, Resident Project Manager, Westinghouse Electric Corp.
J. R. Steele, QA Manager, Pullman Power Products, (PPP)
- J. F. Rogge, Senior Resident Inspector
- R. Schepens, Resident Inspector
- Attended exit interview
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2.
Exit' Interview The inspection scope and findings were sunnarized on April 19, 1985, with those persons indicated in paragraph 1 above.
The inspector described the areas inspected and discussed in detail the inspection findings listed below. No dissenting comments were received from the licensee.
(0 pen) Inspector Followup Item 424, 425/85-14-01 " Clarification of Liquid Penetrant Inspection Procedure," paragraph 6.
(0 pen) Violation 424, 425/85-14-02 " Failure To Follow Procedure For Control Of Welding Consumables", paragraph 7.b.(4).
The licensee did not identify as proprietary any of the materials provided to or reviewed by the inspector during this inspectior..
3.
Licensee Action on Previous Enforcement Matters a.
(0 pen) Unresolved Item 424,425/84-17-02, Visual Acceptance Criteria.
This item concerns deviations of visual acceptance criteria from the American Welding Society D1.1 Structural Welding Code (AWS D1.1-1975).
Appendix VC, Revs. O thru 8, to Bechtel Specification X4AJ01, Revision 12, includes several requirements for visual acceptance of weldments on Seismic 1 steel structures and supports which are less stringent than those imposed by AWS D1.1-1975.
The licensee provided proposed engineering justification for all deviations during an earlier inspection (Report No. 50-424,425/84-36).
The proposed justification (Log:
PFE-3730) had been reviewed and additional concerns were identified to cognizant licensee personnel.
Additional Bechtel-sponsored clarification and engineering justifi-cation (File: X4A201; Logs:
B55141, BG33246, and PFE-4883) were reviewed during an early 1985 inspection (Report No. 50-424,425/85-03)
and the licensee was infonned that engineering justification and clarification were sufficient to resolve all concerns except those regarding exclusion of porosity requirements. (now Deviation 424, 425/85-08-01) and provided that adequate clarification could be obtained regarding the 3/32" undercut acceptance criteria incorporated in Specification No. X2AP01, Division C5, Section No. C5.1, Revision 4, paragraph C.S.1,5.B. versus the engineering justification of 1/16" undercut for Category A welds included in PFE-3730.
The inspector met with cognizant licensee and BPC personnel to discuss a general action plan in response to Unresolved Item 424,425/84-17-02 and Deviation 424, 425/85-08-01.
The inspector was informed that BPC would provide the following:
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A schedule for provision of justification or resolution of any
deviations.of AWS Code requirements which may have existed in specifications with visual acceptance criteria used prior to adoption of Appendix VC.
Modification of Appendix VC so as,to address cluster porosity requirements for Category B welds..(Revision 9, dated January 23, 1985 incorporates porosity requirements but does not address clustered porosity).
Requirements for statistical sampling of Category B welds accepted
prior to adoption of adequate porosity requirements (including cluster porosity requirements as noted above).
Justification or other corrective actions for welds inspected
under specifications allowing 3/32" undercut.
The inspector informed the licensee that this item would remain open pending completion of actions noted above.
b.
(Closed) Violation 424, 425/84-30-02 " Failure to Follow Nonconformance Procedure".
Georgia Power Company's (GPC) supplementary letter of e
response dated February 26, 1985, has been reviewed and determined to be acceptable by Region II.
The inspector examined the corrective actions as stated in the letter of response.
The inspector concluded that GPC had determined the full extent of the subject violation, performed the necessary survey and followup actions to correct the subject conditions, and developed the necessary corrective actions intended to preclude the recurrence of similar circumstances.
The corrective actions identified in the letter of response were imple-mented.
c.
(Closed) Unresolved Item 424, 425/84-30-03, " Failure to Adequately Control Welding". This item concerned adequacy of welding quality data for Unit I containment pipe rack welds B1 to B2 on rack R0003 and P119 to B3 on rack R0001.
The inspector reviewed the quality data in question to verify that the fit-up for the B1 to B2 weld on rack R0003 was completed on February 1,1984, by welder RZ1 and that E7018 elect-rodes from control / lot JJO99 were used to complete the P119 to B3 weld on rack R0001. This item is considered closed.
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Unresolved Items Unresolved items were not identified during this. inspection.
5.
IndependentInspection(92706)
a.
Construction Progress (Units 1 and 2)
The inspector conducted a general inspection of the Units 1 and 2 containments and the reactor auxiliary building to observe construction u-
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prcgress and construction activities such as welding, material handling and control, housekeeping and storage.
b.
Code Pipe Bending The inspector observed the bending of Code Class 2, 1" diameter schedule 160 carbcn steel (SA 106 - Grade B) piping at the Pullman Power Products (PPP) fabrication shop for the following SD-45* bends.
l 1K5-1301-002-01 R/10 106-W-02A and 106-W-102 1K5-1301-002-01 R/10 105-W-028 and 105-W-01 IK5-1301-002-01 R/10 106-W-02B and 106-W-101 1K5-1301-002-01 R/10 105-W-02C and 105-W-102
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1K5-1301-001-01 R/13 107-W-02D and 107-W-02I I
IK5-1301-001-01 R/13 104-W-02B and 104-W-02C 1K5-1301-001-01 R/13 104-W-020 and 104-W-02E 1K5-1301-001-01 R/13 107-W-02B and 107-W-02C The inspector verified the qualification of inspection personnel and observed the transfer of marking, inspection for ovality and wrinkles.
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l and documentation in conformance to (PPP) procedure IX-16 " Cold Bending l
of 2" N. P. S. and smaller, nuclear and B31.1 Pipe: (dated November 30, 1983).
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Within the areas examined, no violations or deviations were identified.
6.
Liquid Penetrant Examination Procedure P.eview (57060)
The below listed PPP liquid penetrant Nondestructive Examination (NDE)
i procedure was reviewed by the inspector to ascertain whether essential
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l examination variables are defined and whether these variables are controlled within the limits specified by the applicable code and other specification requirements.
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Procedure No.
Title Rev. Date
l PPP IX-PT-1-W77 Penetrant Examination 12/3/84
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Procedure to ASME Section III
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Winter 1977 Addenda
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In addition to the review above, the procedure was reviewed in the area of technical content relative to:
l Specified Test Method Requirements
Brand names and specific types (number or letter designation if avail-
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able) of penetrant, penetrant remover, emulsifier and developer.
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Penetrant materials used for nickel-base alloys are required by proce-
dure to be analyzed for sulfur using the method prescribed by the applicable code.
Penetrant materials used for the examination of austenitic stainless steel are required by procedure to be analyzed for total halogens using the method prescribed in the applicable code.
Methods for acceptable pre-examination of surface preparation are specified and consistent with applicable codes. The area to be cleaned is consistent with applicable code requirements.
The cleanliness acceptance requirements are consistent with applicable code require-ments.
The surface to be examined is consistent with applicable code requirements.
Establishing a minimum drying time following surface cleaning
Method of penetrant application and the penetration dwell time are
specified and that the dwell time is consistent with the penetrant manufacturer's recomendation.
Examination surface temperature is specified and is consistent with the
applicable code.
- Methods for removal of solvent removable penetrant are specified.
- Method and time of surface drying prior to developing are specified.
Type of developer to be used, method of developer application and the
time interval between penetrant removal and developer application are specified.
- Examination of technique and the permitted time interval during which the " final interpretation" are performed within the range of 7-30 minutes after developer application.
Minimum light intensity at the inspection site is prescribed.
- Technique for evaluation of indications is specified, acceptance standards are included and these are consistent with applicable code and specification requirements.
Reporting requirements are specified.
- Procedure requalification is required when changes are encountered in
any of the following parameters:
surface treatments which may alter the condition of surface openings; any change in pre-cleaning materials or methods; any change in the type of penetrant materials (including developer, etc.) or in-processing technique; and any change in surface examination temperature limit.
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During the above review, the inspector noted modifications to Section 11.0,
" Acceptance Standards," in response to previously stated NRC concerns (Unresolved Item 424,425/84-36-07). Section 11.0 now requires notification of welding QC inspectors to ensure that welds previously accepted by visual inspection are reinspected whenever their final configuration is changed due to grinding at the request of the NDE examiner.
However, the inspector noted need for clarification regarding initiation of repair when grinding has caused the weld to become rejectable.
The inspector also noted need for clarification regarding the minimum light intensity at the inspection site since paragraph 9.4 requires " adequate illumination" and this term is not defined in the procedure. The inspector infomed the licensee that this item will be identified as Inspector Follow-up Item 424, 425/85-14-01, " Clarification of Liquid Penetrant Inspection Procedure."
Within the areas examined, no violations or deviations were identified.
7.
Reactor Coolant Pressure Boundary Piping (Units 1 and 2)
The inspector examined welding and nonwelding activities for reactor coolant pressure boundary piping to determine whether applicable code and procedure requirements were being met.
The applicable code for reactor coolant pressure boundary piping is the ASME Boiler and Pressure Vessel Code,Section III,1977 Edition with Addenda through W77.
a.
Review of Nonwelding Quality Records (49055)
The inspector selected various reactor coolant piping components (e.g.,
pipe, fittings and welded-in components) for review of pertinent records to detennine conformance with procurement, storage and instal-lation specifications and QA/QC site procedures.
Records of the following items were selected for review to ascertain whether they (records) were in conformance with applicable requirements relative to the following areas: material test reports / certifications; vendor supplied NDE reports; Nuclear Steam Service Supply quality releases; site receipt inspections; storage; ' installation; vendor nonconformance reports.
Item Heat / Control No.
1", 1500 #, S.W. globe valve S/N B5322 I", sched. 160, pipe 466919
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1", x 3/8", sched.160, concentric K3534
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swage fitting
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1", sched. 160, pipe 467386
2", x 2" x 1", reducing tee 08480 2", sched. 160, 90" ell PAUN 2" sched 160 pipe 466978 i
Within the areas inspected, no violations or deviations were identified.
b.
Welding Activities
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i (1) ObservationofWork(55173)(Units 1and2)
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i The inspector observed in-process welding activities of reactor coolant piping field welds inside of containment as described j
below to determine whether applicable code and procedure require-
k ments were being met, l
The below listed welds were examined in-process to verify work i
conducted in accordance with traveler, welder identification and
location, welding procedures, WPS assignment, welding technique i
and sequence, materials identity, weld geometry, fit-up; temporary J
attachments, gas purging, preheat, electrical characteristics, shielding gas, welding equipment condition, interpass temperature,
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j interpass cleaning, process control systems, qualifications of j
inspection personnel, and weld history records.
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l 2X4DL4A17 R/7 008-W-02 31" Fitup
2X4DL4A17 R/7 008-W-03 31" Fitup
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2X4DL4A17 R/7 008-W-04 31" Fitup
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l 2X4DL4A17 R/7 006-W-02 31" Fitup
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l 2X4DL4A17 R/7 006-W-03 31" Fitup i
2X4DL4A17 R/7 006-W-04 31" Fitup
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1K4-1201-027-01 R/S 027-W-104 2"
Welding Root
4 IK4-1201-199-01 R/3 199-W-104
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Final Pass 1K4-1201-199-01 R/3 199-W-102 1"
Final Pass
.1K4-1201-199-01 R/3 200-W-102 6"
Final Pass IK4-1201-022-02 R/5 033-W-108 1"
Root & Fill Pass i
The following inspector qualification status records and "QA/QC
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Inspector Qualification / Certification" records were reviewed
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relative to inspection of the weld joints listed above in para-graph 8.b.(1).
Inspector Type of Certification JMA VT-II MSG VT-II PEM VT-II PKM VT-11 (2) Welding Procedure Specifications and Quality Assurance Procedures (55171) (Units 1 & 2)
(a) Welding Procedure Specifications (WPS) applicable to the weld joints listed in paragraphs 7.b.(1) and 8.b.(1) were selected for review and comparison with the ASME Code as follows:
Procedure Qualification WPS Process PQR Report M 2!
(W)32-111/1-8-12 GTAW/SMAW 104A, 110, 114, (3/9/83)
120, 133 24-111/1-8-KI-12 GTAW/SMAW 133, 120, 110 (9/16/83)
29-111/1-8-08-1 GTAW 125, 132, 133 (9/7/83)
38-111/1-8-KI-1 GTAW 120, 121 (9/18/80)(PCN1)
250-111/1-8-KI-Al GTAW 126, 139 (11/29/83)
General Welding Standard GWS-111/1 (12/14/84)
1/GTAW - Gas Tungsten Arc-Welding 7/SMAW - Shielded Metal Arc-Welding The above WPSs and their supporting Procedure Qualification Records (PQRs) were reviewed to ascertain whether essential, supplementary and/or nonessential variables, including thermal treatment, were consistent with Code requirements; whether the WPSs were properly qualified and their supporting PQRs were accurate and retrievable; whether all mechanical tests had been performed and the results met the minimum requirements; whether the PQRs had been reviewed and certi-fied by appropriate variables were noted. WPSs are qualified
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in accordance with ASME Section IX, the latest edition and addenda at the time of qualification.
Previous to the above inspection, the inspector reviewed NRC concerns documented within inspection reports 424,425/85-11 regarding need for clarification of welding procedure speci-fications (W)32-111/1-8-12, 250-111/1-8-KI-A1, and 24-111/1-8-KI-12 (Inspector Followup Item 424,425/85-11-01).
Cognizant licensee personnel informed the inspector that planned revisions in response to NRC concerns were not completed.
(b) The below listed documents were reviewed to ascertain whether the welding program for reactor coolant piping has been approved by the licensee and whether adequate plant and procedures had been established to assure that welding would be controlled and accomplished consistent with commitments and regulatory requirements.
Documents PPP " Nuclear Quality Assurance Program Manual ASME,
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SectionIII,DivisionI(8/29/84)
Section I, " Organization"Section IX, " Control of Processes"Section V, " Instructions Procedures, and Drawings" PPP XV-2, " Procedure for Handling Nonconformances
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(Field)" (7/11/84)
PPP VIII-3, " Control of Welding Materials (Field)" (4/17/84)
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(PCN3)
PPPX-18."FieldWeldingInspection(7/18/84)(PCN1)
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PPP XV-4, " Hold Tag Usage" (1/9/85)
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PPP VII-2, " Material Control (10/3/84)
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PPP IX-19. " Requirements for Alignment and Fitup" (8/24/84)
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PPP VI-5, " Control of Process Sheets and Weld Rod
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Requisition (3/22/84)(PCN1)
PPP IX-64, " Control of Piping Spool Closures" (8/29/84)
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PPP X-11
" Visual 2xamination" (5/31/82)
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(3) Welder Qualification (55177)
The inspector reviewed the PPP program for qualification of welders and welding operators for compliance with QA procedures and ASME Code requirements.
The following welder qualification status records and " Records of Performance Qualification Test" were reviewed relative to the weld joints-listed in paragraphs 7.b.(1) and 8.b.(1).
Welder Symbol WPS
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HM-2 38-111/1-8-KI-1 and 29-111/1-8-08-1 XB-3 29-111/1-8-08-1 CY-1 38-111/1-8-KI-1 and 29-111/1-8-0B-1 TF 29-111/1-8-0B-1 LB-1 29-111/1-8-08-1 i
GF-2 29-111/1-8-08-1 The inspector observed completion of qualification test weldments and performance of required mechanical bend testing for con-formance with applicable code requirements for the following welder qualifications. Personnel identification was verified.
Identification No.
WPS Type Test 9129 IT8-111/1-1-BR-2 6G pipe 6161 19-111/1-1-BR-5 6G pipe 1015 24-111/1-8-KI-12 6G pipe 5741 IT14-111/1-1-KI-1 6G" pipe 4749 24-111/1-8-KI-12 6G pipe (4) Welding Filler Material Control (55172)
The inspector reviewed the PPP program for control of welding materials to determine whether materials were being purchased, accepted, stored and handled in accordance with QA procedures and applicable code requirements.
The following specific areas were examined:
Purchasing, receiving, storing, and distributing and handling
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procedures, material identification; and inspection of welding material issuing stations.
Welding material purchasing and receiving records for the
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following material applicable to the weld joints listed in paragraphs 7.b.(1) and 8.b.(1) and welder qualifications
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listed in paragraph 7.b.(3) were reviewed for conformance with applicable procedures and code requirements.
g Size Heat, Lot, Batch /No.
E7018 3/32" KK037
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E7018 1/8" GG069 E71T-1 0.035" 2635420 ER309L 3/32" 467674 ER309L-16 3/32" GG093 ER308L 3/32" 05394 ER308L 1/8" 05394 K-Insert (Ms-1)
1/8" x 5/32" 42508131 K-Insert 1/8" x 5/32" 4894T308L (Type 308L)
During the above inspection, the inspector observed that
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stationary holding oven temperatures were not recorded for the date of April 14, 1985, for ovens located within the "Doublewide"
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welding materials distribution center (WMDC). The inspector noted a
that this was a failure to follow the requirements of paragraph
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7.2.1.G of PPP procedure VIII-3 " Control of Welding Materials.
(Field)".
After investigation, cognizant licensee personnel informed the inspector that the omission had occurred on April 11, 1985, but remained unnoticed due to failure of QA Engineers
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involved to crosscheck actual date versus log entry date.
The
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inspector infonned that this matter was considered a lack of i
conformance to 10 CFR 50, Appendix B Criterion V, as implemented by PPP Procedure VIII-3 and would be identified as Violation 424,
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425/85-14-02, " Failure to Follow Procedure for Control of Welding Consumables".
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Within the areas inspected, one violation as noted above was identified. No I
deviations were identified.
j 8.
Safety-Related Piping (Units 1 and 2)
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The inspector examined welding and nonwelding activities for safety-related i
piping to determine whether applicable code and procedure requirements were
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being met. The applicable code for safety-related piping is the ASME Boiler j
and Pressure Vessel Code Section III,1977 Edition with Addenda through i
W77.
a.
Review of Nonwelding Quality Records (49065)
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The inspector selected various safety-related piping components (e.g.,
pipe, fittings and welded-in components) for review of pertinent
l records to determine conformance with procurement, storage and instal-lation specifications and QA/QC site procedures.
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Records of the following items were selected for review to ascertain whether they (records) were in conformance with applicable requirements relative to the fol bwing areas: material test reports / certifications;
vendor supplied NDE reports; Nuclear Steam Service Supply quality
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release; site receipt inspections; storage; installation; vendor nonconformance reports Item Heat / Control No.
System 1", sched. 160, pipe E3251 Main steam 1)", sched. 160 45*, ell D8656 Safety injection 11", sched. 160, pipe 759778 Safety injection 3/4", angle globe valve S/N 85785 Safety injection 3/4", angle globe valve S/N BS798 Safety injection 3/4", sched. 160, pipe 467386 Safety injection
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li", sched. 160, 90' ell E9150 Safety injection-2", sched. 160, 90' ell JWLR Safety injection 2", sched. 160, pipe 465971NCR264 Safety injection 2", sched. 160, pipe 466976 Safety injection Within the areas inspected, no violations or deviations were identified.
b.
Welding Activities
(1) Observation of Work (55183) (Unit 1)
The inspector observed in-process welding activities of safety
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injection piping field welds inside of. containment as described
below to determine whether applicable code and procedure require-
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ments were being met.
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The below listed welds tre examined in-process to verify work conducted in accordance with traveler, welder identification and location, welding procedures, WPS assignment, welding technique
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and sequence, materials identity, weld geometry, fit-up; temporary
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attachments, gas purging, preheat, electrical characteristics, shielding gas, welding equipment condition, interpass temperature, interpass cleaning process control systems, qualifications of
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inspection personnel, and weld history records.
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s 150 Weld Size Ststus
1K4-1204-078-02 R/7 224-W-131 li" Fit-up &
welding root IK4-1204-079-02 R/9 079-W-108 3/4" Fit-up & final pass
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1K4-1204-079-02 R/9 079-W-113 3/4" Fit-up & final pass 1K4-1204-079-02 R/9 245-W-106 11" Fit-up &
welding root 1K4-1204-197-02 R/7 022-W-1018 2"
Fill passes 1K4-1204-032-01 R/10 036-W-107 2"
Fit-up &
welding root The review of inspector qualification status records and "QA/QC Inspector Qualification / Certification" records relative to inspec-tion of the weld joints listed above is documented in paragraph 7.b.(1).
(2) Welding Procedure Specifications and Quality Assurance Procedures (551818) (Units 1 and 2)
The procedure review documented in paragraph 7.b.(2) for reactor coolant piping is also applicable to safety-related piping.
(3) Welder Qualification (551878) (Unit 1)
f The inspector reviewed PPP's program for qualification of welders.
The applicable procedure is II-8, " Welder Performance Procedure"
(12/14/84).
The following specific areas were examined:
Procedures for qualification of welders
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Procedures for maintaining continuity or status records
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Review of welder qualification status records and " Records of
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Performance Qualification Tests,"
relative to the weld joints listed in paragraph 8.b.(1) above is documented in paragraph 7.b.(3).
In-process welder qualification tests which were observed are
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listed in paragraph 7.b.(3).
(4) Welding Material Control (551828) (Units 1 and 2)
The welding material control inspection documented in paragraph 7.b.(4) for reactor coolant piping also applies to safety-related piping.
Within the areas inspected, one violation, as reported in paragraph 7.b.(4),
was identified. No deviations were identified.
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9.
Licensee Identified Items (92700)
Prior to the inspection, the licensee identified the following items under l
a.
(Closed) Item 424, 425/COR 83-42, " Defective Weld Wire"
On June 9,1983, the licensee notified Region II of a potential 50.55(e) item concerning hot cracks on welder qualification test
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specimens welded with type 309L weld wire.
The final report was submitted on December 19, 1983.
The report has been reviewed and
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determined to be acceptable by Region II. The inspector had previously reviewed inspection report 424, 425/84-18, paragraph 6, relative to ultrasonic examinations of Unit 1 containment penetrations of butt welds using the subject 309L filler metal to join carbon steel to 304 stainless steel material. No evidence of cracking was identified. The
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inspector reviewed supporting documentation of inspection of other critical joints welded with the subject 309L material as well as the BPC metallurgical analysis on this issue.
This item is considered closed.
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b.
(Closed) Item 424, 425/CDR 81-18, " Containment Liner Penetrations -
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Unit 1 On March 26, 1981, the licensee notified Region II of a potential
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50.55(e) item concerning possible defects on Unit 1 containment penetra-tion welds.
The final report was submitted on August 7,1981.
The report has been reviewed and determined to be acceptable by Region II.
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l The inspector reviewed the supporting analyses which indicated problems associated with weld cleanup and other cosmetic conditions which should
have been eliminated prior to the magnetic testing involved.
The
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inspector also reviewed documentation regarding completion of necessary j
rework. This item is considered closed, c.
(Closed) Item 424, 425/CDR 84-56, " Containment Penetration Welds" On February 9,1984, the licensee notified Region II of a 50.55(e) item concerning defects in containment penetration welds. The final report was submitted on March 7,1984.
The report has been reviewed and
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detennined to be acceptable by Region II.
The deficient welds were
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discovered during review of penetration weld radiographs to ensure that no hot cracks had resulted from use of the 309L weld wire reported in
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paragraph 9a. The deficient welds were repaired and reinspected by the (
licensee.
As reported in paragraph 9a, no evidence of remaining defects was identified during later independent verification by NRC
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(ReportNos. 424,425/84-18). This item is considered closed.
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10. _ Previously Identified Inspector Followup Items (Closed) Inspector Followup Item 424, 425/85-03-02, " Adequacy of
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Temperature Marking Crayons" This item concerned adequacy of temperature marking crayons.
Welding material issue stations are provided with both Markal thermomelt and Tempilstick temperature indicating crayons.
The crayons are issued indiscriminate 1y for use on stainless steel as well as-carbon steel weldments.
Further, in conformance to GPC Procedure GDT-14, Rev. 6, the crayons are used as the reference standard to ensure adequate. oven temperature before issuing electrodes requiring moisture control. The-inspector reviewed certification information from Tempilstick and Markal which verified control of inorganic halogen contsnt and low melting-point metals as well as assurance that specified melt tempera-ture was accurately indicated on several lots of marking crayons currently being issued for production work.
This item is considered closed.