IR 05000312/1986028
| ML20214L209 | |
| Person / Time | |
|---|---|
| Site: | Rancho Seco |
| Issue date: | 08/25/1986 |
| From: | Clark C, Richards S NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| To: | |
| Shared Package | |
| ML20214L194 | List: |
| References | |
| 50-312-86-28, NUDOCS 8609090532 | |
| Download: ML20214L209 (5) | |
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U. S. NUCLEAR REGULATORY COMMISSION i , REGION V.
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~ s Report No. 50-312/86-28 Docket No. 50-312 License No. DPR-54 Licensee: Sacramento Municipal Utility District P. O. Box 15830 Sacramento,.C211fernia 95813 s . Facility Name: Rancho Seco Unit 1 Inspection at: Herald, California (Rancho Seco Site) Inspection Conducted: August. 4-8, 1986 Inspected by: M d- - [[ C. Apark, Reactor liispector Date Signed Approved by: MM c2d#ffl., A A /,rS/A6 S.
rds, Chief, E ineeringpction Dat/ Signed Summary: Inspection during the period of August 4-8, 1986 (Report No. 50-312/86-28) Areas Inspected: Routine, unannounced inspection by regional based inspector of inservice inspection (ISI) activities, including: review of the ISI program and implementing procedures, observation of ISI work activities, review of quality records. During this inspection, inspection procedures 73051, 73052, 73753 and 73755 were covered.
Results: In the three areas inspected, no violations of NRC requireinents were identified.
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.- , + ' , _ DETAILS s J-1.
. Persons Contacted ' , , ,
- G. Coward, Plant Manager,
, ' *J. Vinquist, Nuclear' Projec'ts; Manager
- J. Shetler, Nuclear Scheduling' Manager-
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- B. Croley, Nuclear Technical Manager-
"*R. Colombo, Regulatory, Compliance: , , . + ,
- J..Uhl, ISI Coordinator-
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- H. Heckert,' Staff Assistant (Acting); t
, . ' '*M.lShanbhag,_ Quality' Engineering Deputy' Supervisor.
- F. Hauck, Senior Engineer Manager W. Thomas, Associate Quality Engineer l
D. Wiles,-I&C Supervisor
- Denotes'those personnel in attendance at the exit meeting on
August 8, 1986.
The inspector also held discussions with other. licensee and contractor . employees involved with inservice inspection activities.
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Inservice Inspection - a.
Inservice' Inspection Program The licensee's Inservice Inspection (ISI) program is based upon the , ' requirements (1971 Edition) of Section XI of the ASME Boiler and Pressure-Vessel Code, through the Summer 1973 Addenda, for Class.1 systems during the first one-third of the inspection interval. The 1974 Edition of Section XI, through the Summer of 1975 Addenda, is , the inspection interval basis for all Class 2 systems, and the inspection basis for the last two-thirds of Class I systems ' intervals. Babcock and Wilcox (B&W) -is the Leontractor performing ISI activities during this cutage (#7). The,1986 technical manual, for' Rancho Seco Unit 1 Refueling Outage #7, lists the areas to be , examined, the method and extent of the examination, and the ' calibration blocks required.
b.
Review of Procedures The following procedures were examined to assure that they adequately covered all areas specified in the licensee's commitment l for ISI requirements: (1) ISI-20, Revision 8, " Administrative Procedure for the Written Practice of Personnel Qualification in Magnetic Particle Examination" ,
(2) ISI-21, Revision 8, " Administrative Procedure for the Written _ Practice of Personnel Qualification in Ultrasonic Examination" L .. i l
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2 . . -(3) 'ISI-22, Revision 7, " Administrative Procedure for the Written Practice of Personnel Qualification in Liquid Penetrant Examination" (4) ISI-25, Revision 9, " Personnel Qualification - Visual Examination" (5) ISI-54, Revision 3, " Administrative Procedure Describing the Use of Volumetric, Visual / Surface, and Calibration Data Sheets" (6) ISI-50, Revision 9, " Technical Procedure Describing Surface Requirements of Welds, Adjacent Base Metal, & Components for Nondestructive Examination" (7) ISI-55, Revision 1, " Technical Procedure for Sulfur Content Analysis" (8) ISI-56, Revision 1, " Technical Procedure for Halogen Content Analysis" (9) ISI-120, Revision 12, " Ultrasonic Examination of Piping and Vessel Welds Joining Similar and Dissimilar Materials , (10) ISI-130, Revision 15, " Ultrasonic Examination of Vessel Welds and Nozzle Inside Radius Sections" (11) ISI-240, Revision 12, " Penetrant Examination of Welds and Base Materials, Including Studs and Nuts" (12) ISI-270, Revision 20, " Wet or Dry Methods of Magnetic Examination of Welds, Studs, Bolts, and Pump Motor Flywheels" (13) ISI-350, Revision 18, " Visual Examination of Welds and Surface Conditions" (14) ISI-353, Revision 5, " Visual Examination of Pipe Hangers, Supports and Restraints" (15) ISI-362, Revision 10, " Identification and Layout of Welds and System Components" All the above procedures were approved by authorized licensee personnel and a Level III examiner.
c.
Observations of NDE Activities ~ The inspector observed an ultrasonic (UT) examination being performed on pipe to elbow weld (C2.1, ID#20522-10BW) for main steam line A.
The following attributes were evaluated and found to be consistent with: 'the approved procedure and ASME Section XI requirements, the type of apparatus used, scanning technique, extent of coverage, calibration of the instrumentation and system prior to examination, beam angles, size and frequency of the search unit, limits of evaluation and recording of indications, and determination k
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.. . . of. acceptance limits. In conjunction with this examination,- the inspectors reviewed the calibration block certificatiors, transducer RF pulse wave forms, and the ultrasonic couplant certifications.
The inspector also observed liquid penetrant (PT) examinations of the support attachment welds-(C2.5.97-100; IDf26121-16PS, -27SR, -31PS, -38PS) for decay heat removal piping., Surface preparation, application ~of, penetrant and developer including recommended dwell times, penetrant removal, and visual inspection for surface indications were observed and found te be in compliance with the applicable procedure.
During this inspection, it was identified that approximately 56 percent of the scheduled ISI magnetic particle (MT), PT and UT ' examinations have been completed as c f August 8,1986. The remaining examinations will be delayc1 until after approximately September 15, 1986, as the B&W crew on site has~a prior commitment to perform another facility outage examinations for the next five weeks. Three members of the original crew will return to complete ' the remaining examinations.
d.. NDE Personnel Qualifications The qualification and certification records of the NDE personnel performing ISI examinations were reviewed by the inspector. The records were compared with the guidelines of the American Society for Nondestructive Testing Recommended Practice No. SNT-TC-1A, " Personnel Qualification and Certification in Nondestructive Testing." There were no discrepancies noted during this record review, and the licensee and B&W resolved all questions, i e.
Data Review and Evaluation i The completed MT, PT and UT examination records.were reviewed to ascertain whether the following applicable documents /information were provided: Examination results and data sheets, examination equipment and material data, extent of examination calibration data sheets, examination evaluation data and appropriate signatures. No discrepancies were identified in the records reviewed.
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Quality Assurance Involvement The licensee's quality assurance involvement with B&W and ISI activities were documented in the following quality assurance surveillance activities reports: QA Surveillance No.
Activity Description 676 Witnessed ' Int examinations of three welds on the main steam line (A).
677 Verification that equipment used for the current ISI have current calibration certifications.
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678 Witnessed MT examination of weld C2.5.66.
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- js 679 Verification that Babcock and Wilcox
~ ' ' ? . procedures for the qualification of;NDE personnel have requirements equivalent to . those of.the licensee.
-680 Verification that the chemical composition ~ of the UT couplant, NT and PT materials being used by B&W ISI personnel are in accordance with ISI-55 and ISI-56.
681 Reviewed certifications for transducers ~ used for the present inservice inspection, and verified the information on approximately one-half of these.
682 Review and document Babcock and Wilcox quality control inspection reports related to eddy current.
683 Verification of qualifications and certification of personnel performing eddy-current inspections.
684 Verification of qualifications and (8/1/86) certification of NDE personnel.
684 Verify batch no. 8557 of Ultragel II meets (8/4/86) the requirements for sulphur and halogens content.
685 Review the data for the recordable indications found to date for the inservice inspection.
No violations of NRC requirements or deviations were identified.
3.
Exit Meeting a The inspector met with licensee management representatives denoted in paragraph 1 on August 4, 1986. The scope of the inspection and the , inspector's findings as noted in this report were discussed.
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