IR 05000498/1990014
| ML20042G161 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 05/02/1990 |
| From: | Barnes I, Garrison D, Gilbert L NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | |
| Shared Package | |
| ML20042G157 | List: |
| References | |
| 50-498-90-14, 50-499-90-14, NUDOCS 9005110161 | |
| Download: ML20042G161 (9) | |
Text
{{#Wiki_filter:_ _ - y - y; , .., , , p . APPENDIX U.S. NUCLEAR REGULATORY COMMISSION
REGION IV
NRC Inspection Report: 50-498/90-14 Operating Licenses: Nrf-76 , 50-4?9/90-14 NPF-80 Dockets: 50-498 ! 50-499 Licensee: Houston Lighting & Power Company P.O. Box 1700 Houston, Texas 77251
Tacility Name: SouthTexasProject(STP) Inspection At: STP, Matagorda, Texas Inspection Conducted: April 16-20, 1990 , '
l Inspectors: f dt
O ' L. D. Gilberl.,~ REaRb nspecg, MaterliF Date ' and Quality Programs Section Division of Reactor Safety Q Nd rMu ~ ~ D. L. Garrison, Reactor Inspector aterials Date and Quality Frograms Section, D ision of Reactor Safety J[E-/90 " Approved: I. Barnes, Chieh' flaterials arid QuaTRy~ Date / Programs Section, Division of Reactor Safety inspection _ Summary inspection Conducte,d April 16-20,1990 (Report 50-498/90-14] Areas Inspected: Routine, unannounced ins welding activilies, inservice inspection (pection of control of safety-related 151), and licensee action on previously identified inspection findings.
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- Results:
The licensee has fully implemented corrective action commitments made in response to previous inspection findings in the areas of weld monitoring and weld material control. The results of this inspection indicate that.the 9005110161 900504 PDR ADOCK 05000498 O PDC ' -
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E '! ! ' .. L11censee has'now established and implemented an effective program for the i ( ' control of safety related_ welding activities.. Observation of ISI work .
- activities found that volumetric and surface examinations required by the !$1 l
' program plan were being satisfactorily performed by appropriately certified
, licensee and. Southwest Research Institute personnel.
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Inspection Conducted April 16-PO,1990 (Report 50-499/9014) ] I No inspection of Unit 2 conducted.
I L ,1 ' s , - Results: ;Not applicable.
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! DETAILS [ 1.
PERSONS CONTACTED 1.1 HL&P , !, ~*G. E. Vaughn, Vice president, Nuclear Generation
- S. L. Rosen, Vice president, Nuclear Engineering and Construction
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- W. H. Kinsey, plant Manager
- M. R. Wisenburg, General Manager, Assessment / Nuclear Safety Review Board l
- J, D. Green, Kanager, Nuclear Quality Control & Materials Testing
- A. C. McIntyre Manager, Support Engineering Department (SED)
- W. J. Jump, Manager, Maintenance
- M. A. McDurnett, Menager, Licensing
- D. W. Bohner, Manager, Quality Engineering
- D. J. Denver, Manager, plant Engineering Department
- V A. Simons, Manager, plant Operations Support
- J. T. Hinor, Manager, Support Construction Engineering
- M. A. Ludwig, Manager, Construction Engineering
- L. Giles, Manager, Unit-2 plant Operations
- R. L. Deverly, Supervisor, Engineering - Inservice Inspection
- S. Timmoraju, Senior Consulting Engineer, SED
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- K. W. Silverthorne, Construction Welding Specialist
- C. A. Ayala, Supervising Engineer'- Licensing
- A. K. Khosla, Senior Engineer, Licensing
- R. Koogle, Engineer SED
- J.C. Younger,StaffEngineer-InserviceInspection L. R. Casella, Senior Consulting Engineer 1.2 NRC
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- J. 1. Tapia, Senior Resident inspector 1.3 SouthwestResearchInstitute(swr 1)
- W. Jensen, Level !! D. Kleinjan, Level 11
T. Jackson, level 11 D. Smith, Level 11 The inspectors also interviewed other licensee and contractor employees during the inspection.
- Denotes attendance at exit interview conducted on April ro, 1990.
2.
LICENSEE ACTION ON pREVIOUSLY IDENTIFIED ITEMS (92702) l ' 2.1 (Closed) Violation (498/8936-01;499/8936-01): Monitoring of welding parameters. The inspectors veHTEd that the licensee has instituted programs .
a o . , -4-for in-process monitoring of welding parameters. The rnonitoring programs, as stated in procedure OPHP02-ZW 0001 for craf t personnel and Procedure t'DEp 3.0 for Quality Control (QC) personnel, consit,ts of random in-process surveillance of welders activities during the welding process to ensure conformance with welding procedures. The inspectors discussed the welding aarameter monitoring programs with the personnel responsible for irnpimenting taese programs and reviewed the surveillance activities performed by the craft and OC.
In addition to reviewing 21 in-process parerneter verifications performed by craft personnel and 24 welding parameter surveillance reports generated by QC personnel, the inspectors also monitored the safety-related welding activities and found that: (a) a copy of the welding procedure was available to the welderintheworkpackage,(b)thewelderswerefamilierwiththewelding procedure requirements, and (c) the welders were welding within the amperage range specified in the welding procedure for the size of ccated electrode being used by'the welder. The inspectors noted that the licensee has installed digital readouts on welding machines which will display welding arnperage or voltage. This is a welding program enhancement, in that, the welder now has the incans to verify that the welding current used is within the range specified in the welding procedure, in addition to the inspectors' observations, the licensee's surveillence activities included satisf actory results for procedural compliance with respect to welding parameters, therefore this item is closed.
(Closed) Violation (498/8936-02;EReWr499/8936-02: Control of welding 2.2 The licensee issued probl ., 634 to document the inat erials.
conningling of electrode classifications and heat numbers. The inspectors (a) investigating reviewedthelicensee'scorrectiveactions,(whichincluded:b) verifying by Quality Assuran and identifying the extent of the problem, surveillances that the problems have been corrected (c) evaluating potential impact on safety-related plant systems and equipment and(d)developinga training program for weld rod issue personnel. TheInspectorsalsotouredweld filler material issue areas and monitored welding activities with respect to the control and stnrage of covered electrodes. Based on the setisfactory review of the Quality Assuranc2 Surveillance reports noted on Attachment 3 and results noted with respect to implernentation of corrective actions, this item is closed.
. 3.
CONTROL OF WELDlHC (55050.55100) The purpose of this inspection was to verify that the licensee has established measures to assure that welding is controlled and accomplished by qualified personnel, using qualified procedures, in accordance with applicable codes, standards, specifications, criteria, and other special requirements.
The inspectors observed activities during the Unit I refueling outage associated with welding an Arnercian Society of Mechanical Engineers (ASME) Section 111, Class 2 pipe butt weld in the containment purge system and welding of a tee joint with a fillet weld on NF Support CV-1003-HL-5003 for the chemical and volume control piping system. The work package for the butt weld was WP 005577EP-02 and the weld was designated as Weld FW 0001 in Engineering Change Notice Package (ECNP) 89-M-0008. The work package for welding the fillet weld was Wp 005548EP-02 and i
i m . , ! -5-i the weld was designated as FW 02 on Drawing CY-1003-HL-5003 for Design Modification MDCN 88 207. The appliceble Code editions specified in the work pacteges were ASME Code Section XI, 1983 Edition, Summer 1983 Addenda and ASPE Code Section 111, , 1974 Edition through Winter 1975 Addenda. At the time of the inspection, the i butt weld was being repaired in eight areas of the 48-inch diameter pipe weld which had not passed the rediographic examination.
In addition to monitoring the welding amperage used in making both welds, the inspectors noted that: , (a) the welders were using size 3/32 inch E7018 electrode that remained in a ' heatedcontaineruntilreadyforuse;(b)thereferencenumberendcontrol , number for the welding filler material was traceable to a certified material testreportandreceiptinspectiondocumentation;(c)thewelderswereusing , Welding procedure Specification (WpS) pl-A-Lh as directed by the welding instructions; (d) the welders had been tested and were listed as qualified for
the WpS on the welder status chart dated April 5, 1990; and (e) the surface of the completed repair welds was satisfactory for radiographic examination.
The welding program documents listed in Attachment I were reviewed and found to be consistent with the applicable requirements of ASME Code Sections Ill, IX, and XI.
No violations or deviations were identified during this portion of the inspection.
INSERVICEINSpECT10N_(7p53) , The purpose of this inspection was to determine if the licensee was implementing a program for the inspection of safety-related activities that conforms with the Inservice Inspection plan established by the licensee and meeting the requirements of Section XI of the ASME Code.
Theinspectorsmetwith-theinserviceinspection(ISI)supervisorandISI ' coordinator for a briefing on the status of the 151 program and examinations.
' The inspectors were informed that Southwest Research Institute was contracted to perform the ISI examinations selected by the licensee f or the second refueling outage, with the exception of the surface examinations, which would be performed by the licensee's Nuclear QC Department. The inspectors were , provided a copy of the examination plan and a schedule for performing the , examinations. The inspectors selected for witnessing three volumetric examinaticns and two surface examinations, which were scheduled to be performed - during the week of the inspection.
, 4.1 Volumetric _Eyaminations The three volumetric examinations witnessed by the inspectors were the ultrasonic examination of: (a) the pressuriter upper head to shell weld, Examination Humber 010100 pR2-1-01; (b) the steam generator 1-A inlet nozzle to lower head weld, Examination Number 015200 SG-1A-IN; and (c) the steam generator outlet nozzle inside radius section. Examination Number 015500 ,_ SG-1A-ON-IR.
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During the witnessing of the examinations, the inspectors verified that the e examination was consistent with the requirements of the applicable examination procedure in the following areas: (a) surface preparation cleanin temperature-(b)couplantapplication;(c)transducersire,engle,g,and , speed, and i.
direction; (d) system calibration and calibration verification; and , , (c) recording of data. The examinations were performed by SwRI certified Level ' i 11 ultrasonic examination personnel. Ultrasonic examination procedures that , were used by the examination personnel are listed in Attachment 2.
No violations or deviations were identified during this portion of the l inspection.
L f 4.2 Surface Examinations > t ! The two surface examinations witnesscd by the inspectors were both on pipe welds located inside the reactor building. The welds were identified in the i 151 program plan as 151 Weld Number 6-SI-1327-5, a 6-inch pipe butt weld in the safety injection system and 151 Weld Number 12-RC-1112-2, a 12-inch pipe butt weld in the reactor coolant system. The surface examination method specified in the 151 program plan for both welds was liquid penetrant.
During witnessing of the liquia penetrant examinations, the inspectors verified thht the examination was consistent with the requirements of the applicable exan,ination procedure in the following areas: (a)surfacecleaningand temperature;(b)penetrantanddeveloperapplication; c) cleaner drying time.
penetrantdwelltire,anddeveloperevaluationtime;(e()brandandtypeof evaluation and acceptance criteria allowed for drying cleaner, and penetrant exemination material, and marufacturer certification for halogen and sulfur content. The examinations were performed by an HL&p QC inspector certified as a Level 31 liquid penetrant examiner in accordance with ^ Hondestructive Examination Procedure NDEp 1.0, " Qualification and Certification of Nondestructive Examination Fersonnel," Revision 2.
The procedure used for the liquid penetrant examinations was Nondestructive Examination procedure NDEP 6.2, " Color Contrast Solvent Removable Liquid penetrant Examination for ASME XI PSI /ISI," Revision 2.
No violations or deviations were identified during this portion of the , inspection.
, 5.
EXIT INTLRVIEW An exit interview was conducted on April 20,1990, with those personnel denoted 'n paragraph 1 in which the inspection findings were summarized. No information ' was presented to the inspector that was identified by the licensee as proprietary.
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ATTAQMNT1 ' > - .
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Welding Program Procedures WeldingProcedureSpecificationPI-A(TB), Revision 0,andsupportingProcedure.
Qualification Report 051B . ' Welding Procedure Specification P1-A-Lh, Revision 1, and supporting Procedure Qualification Reports 019, 020, and 040 Welding Procedure Specification PI-T, Revision 2, and supporting Procedure Qualification Report 003 Welding Procedure Specification P8-A, Revision 2, and supporting Procedure Qualification Reports 005 and 037 Welding Procedure Specification P8-T-Ag, Revision 3, and~ supporting Procedure . Qualification Reports 035, 037, and 046 , . _t'. " s _ d' - .,,,., - -~, ,+ ,
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- SwRI: Examination Procedures L ' SwRI-NDT-600-11 " Manual Ultrasonic Examination of Nozzle Inner Radius Sections," Revision 46 l i I SwRI-NDT-600-15, " Manual Ultrasonic Examination of Pressure Vessel Welds," 'l [ Revision 73 t .
' la IX-fE-117-6, " Recording Indications During Ultrasonic Examination of Pressure ' Retaining Coniponents and Supports," Revision 6 - ! IX-TE-118-5, " Recording Indications During Ultrasonic Examination of Pressure j f-Vessel Welds," Revision $ r t
I IX FE-132-0, " Ultrasonic Indication Resolution Procedure," Fovision 0 ,-
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ATTACHMENT 3 ' ] . !1 I n v . !
y Quality Assurance Surveillance _ Reports
lQASR 89-228, Weld filler noterial control surveillance performed on August 24 ' l ' > i [ end 30, 1989- - ! e
F IQASR 89-244. Weld filler material control surveillance performed on l (/ . September 19, 1989-
? ii February. 21-22,1990 ' ! QASR 90-020 Weld filler material control surveillance performed on ' t !- ! . ! <) [
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