IR 05000298/1986034
| ML20212E406 | |
| Person / Time | |
|---|---|
| Site: | Cooper  |
| Issue date: | 12/22/1986 |
| From: | Constable G, Garrison D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | |
| Shared Package | |
| ML20212E396 | List: |
| References | |
| 50-298-86-34, NUDOCS 8701050319 | |
| Download: ML20212E406 (7) | |
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APPENDIX U.S. NUCLEAR REGULATORY COMMISSION
REGION IV
NRC Inspection Report 50-298/86-34 License:
DPR-46 Docket:
50-298 Licensee:
Nebraska Public Power District (NPPD)
P. O. Box 499 Columbus, Nebraska 68601 Facility Name:
Cooper Nuclear Station Inspection At:
Cooper Nuclear Station, Nemaha County, Nebraska Inspection Conducted:
November 17-21, 1986
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Inspector:
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/2/2 = /e DM. Garrfson,~ Resident Inspector, Project Date /
Section C, Reactor Projects Branch
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G..L. Constable, Chief, Project Section C Date '
Reactor Projects Branch Inspection Summary Inspection Conducted on November 17-21, 1986 (Report 50-298/86-34)
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Areas Inspected:
Routine, announced inspection of inservice inspection activit.ies.
Results:
In the area inspected, no items of noncompliance or deviations were noted.
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8701050319 861223 PDR ADOCK 05000298 G
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-2-DETAILS 1.
Persons Contacted Nebraska Public Power District
- G. Horn, Division Manager
- J. Flaherty, Plant Engineering Supervisor
- S. Freborg, Lead Mechanical Engineer
- G. Smith, Quality Assurance Supervisor General Electric Company M. Heath, Project Manager i
Stone and Webster
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M. Collins, ISI Engineer
- Present at the exit interview.
The NRC inspector also interviewed other personnel of NPPD and General Electric.
2.
Plant Status The plant was shutdown during this inspection for refueling.
The inservice inspection program was approximately 80 percent complete.
3.
Inservice Inspection a.
Program Review The inservice inspection general program was reviewed and compared to other codes and standards to which the licensee has committed.
It was also examined for inclusion of sub programs and their requirements.
(1) Program Approval The current ISI program, including relief requests, was submitted to the NRC in a series of letters beginning on March 1,1984.
The ISI program including relief requests was approved, with two exceptions, by NRC on January 6, 1986.
The base document from which the ISI plan, schedule, and program were developed was from 10 CFR 50.55a(g).
The applicable NRC inspections were performed in accordance with Section XI of the ASME Boiler and Pressure Vessel Code 1980 Edition through Winter 1981 addenda except where specific written relief was granted by NR _.
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The prograralis a General Electric contracted document adapted to NPPD use and includes the program basis, codes, extent of examinations, examination boundaries, augmented inspections,
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relief requests, required records, and applicable NDE
procedures.
The following requirements were noted as having
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been completed or included during the review by the NRC
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inspector:
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o Relief requests submitted and granted.
o ANI had reviewed and approved the program.
o The Station Operations Review Committee has reviewed and approved the program.
o Commitments and regulatory requirements included.
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Plans and Schedule and their filing with the proper authorities.
o Sufficient staff.
o Procedures include evaluation and acceptance of ISI results.
o Quality Assurance program in place and includes methods for d
records, review, corrective action, audits and contractor activities.
o Repairs are made to Section XI work traveler packages.
o Replacements are according to approved procedures.
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Record retention is in accordance to Plant Services.
Procedure 1.9, " Control and Retention of Records."
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Personnel are qualified in accordance with Section XI o
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o The program includes reporting requirements of ISI results, repairs, and replacements.
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The following documents were reviewed:
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o NPPD/GE Inservice Inspection Program Volumes 1 and 2 (Revision 3) (programmatic and NDE procedures)
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o ASME B&PV Code Sections V and XI, 1980 - Winter 1981 agenda
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Operations Procedure 0.5, "Nonconformances," Revision 2 In conclusion, it appears that the inservice inspection program meets the applicable regulatory and code requirements as evidenced by the performance of the program.
b.
Procedures The NRC inspector reviewed a series of NDE, QA and plant procedures in order to assess their adequacy in implementing the various facets of the complete program.
The NDE procedures covered ultrasonic, liquid penetrant, visual and magnetic particle testing.
All of the procedures noted or reviewed had previously been approved by the code authorities and site management.
Each procedure was qualified to a specific method / code requirements and delineated the scope of work.
The balance of the procedures reviewed covered the supporting requirements in the ISI program.
The documents reviewed basically described the function of the procedure, methods of examination or work, special requirements, evaluation methods, reports, and records.
The procedures reviewed were:
o QA Procedure 1500, " Inservice Inspection," Revision 5 o
QA Instruction 5, "QA Audits," Revision 21 o
QA Instruction 1, " Preparation of Documents," Revision 8 o
QA Procedure 1600, " Control of Contractors," Revision 4 o
Maintenance Procedure 7.01, " Work Item Tracking - Corrective Maintenance," Revision 6 o
Maintenance Procedure 7.0.8, "Hydrotesting," Revision 1 o
Plant Services Procedure 1.9, " Records," Revision 5 o
MIUP - W812 "Hanual U.T. of Full Penetration Welds," Revision 0 o
UT-43, " Automatic U.T.," Revision 8 o
IV1-W812, " Visual Inspection," Revision 1 o
1P-W812, " Liquid Penetrant Examination," Revision 1 o
STP-85, " Class 1 Hydrotesting," Revision 1
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Ample procedures were found to be in place and included provisions for the program requirements in each segment reviewed by the NRC inspector.
c.
Observation of NDE Testing The NRC inspector witnessed seven complete liquid penetrant tests,
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three complete manual ultrasonic (UT) tests at 0 degree and three at
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45 degrees and 20 inches of an automatic ultrasonic scan.
o Five of the liquid penetrant tests were performed on the 14-inch high head safety injection suction line, and two were performed
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on the 12-inch discharge line.
These welds are shown on the flow diagram Drawing 2044.
The component numbers were HP1S-CF-12-16 and HP19-CF 10 and 12.
These inspections were recorded on test sheets that adequately describe the results of the test.
The NRC inspector witnessed and verified the temperature
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requirements, surface preparation, pre-cleaning, penetrant application and removal, dwell times, dev' eloper application, examination and recording of results.
These tests were in conformance with Procedure IP-W812, Revision 1, " Liquid Penetrant Examination of Nuclear Power Plant Components." The NRC inspector verified the materials used and personnel qualifications were in accordance with approved procedures, o
Three of the manual ultrasonic examinations were performed on the reactor water clean up line.
The welds are shown on Drawing 2042, Revision N12, CNS-RWCV-3 and Drawing 2605-4.
Three of the A-scans were at 0 degree using dual element transducers and o
three at 45 degrees using single element transverse wave type units.
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The: data from these tests were recorded on data sheets CDS 223 and 225.
The NRC inspector verified the calibration and set up of the oscilloscope, method of test, couplant material, transducer certification, personnel certifications for the inspectors and test records.
These tests were performed to Procedure M1UP-W812, Revision 0, " Manual U.T. Examination of Full Penetration Piping Welds."
o The NRC inspector witnessed an automatic UT scan of 20 inches on the 14-inch recirculation inlet nozzle weld RRH-RR-37.
This was a remote controlled scan to Procedure UT-43, Revision 8,
" Procedure for Ultrasonic Examination of Pipe Welds Using Automatic Epuipment." Both the personnel and equipment were qualified to EPRI NDE requirements.
The equipment certifications, scan photographs, pipe profile sheet and other data were examined for confonnance to the procedure.
In summary, it appears that the procedural requirements for the tests observed were in conformance to the approved procedures.
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-Records The following records were reviewed in order to assess the adequacy of the records for the process involved:
o Hydrostatic testing - Records of the RPV hydro test after the piping replacement of 1984-85 to Test Procedure 85-1L, "ASME Class 1 Hydrostatic Test," was reviewed and found to be detailed and inclusive of the requirements for this type of test.
o Ultrasonic Testing RPV - The results of testing of the vessel to Procedure MIUP-W812, Revision 0, on November 6, 1986, was reviewed and found to be in conformance to the procedure.
The records were complete and in accordance with the procedure for technique and data.
The data examined had not been compared to previous data at the time of the inspection.
o Repair / Replacement - These records concern the repair to a split in the reactor water cleanup line.
This was performed to an addendum to maintenance procedure 7.0.1, Revision 6, " Work Item Tracking - Corrective Maintenance." The development of a specific procedure was in process. The records included the maintenance work request, weld checklist and completion record, hydrostatic leak test record, NDE report of an liquid penetrant examination and QC testing checklist o
Growth Rate of Flaws - Two sets of UT records were examined to confirm that data had been compared in order to establish growth patterns.
The original test data on nozzle CSA-BF-1 was dated July 5, 1985.
This test was repeated on November 6, 1986, although the data is svailable the results of these tests have not been evaluated as yet.
It was noted that the suspect area is a clad indication, not in the weld area.
o Owners ISI Report - This report is required within 90 days of the completion of the ISI in accordance with Section XI IWA6230.
T;iis item was discussed with the licensee and should be received by the regional office in the proper time frame.
o 10 CFR 50.59 Reports - Facility changes are required to be reported to the region and to I&E at least annually.
The records reviewed were an annual report from the licensee to the Regional Administrator dated February 28, 1986, outlining 50.59 items on page 6.
o Test Records - The records of the tests examined by the NRC inspector during this inspection were adequate and in accordance with the controlling document.
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-7-In conclusion, it was established by review of the records that the i
' licensee appeared to be implementing a program that is in conformance
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to established procedures.
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Exit Interview The NRC inspector met with licensee representatives (denoted in paragraph 1) on November 21, 1986, and summarized the scope and findings of the inspection.
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