ML19320C958
| ML19320C958 | |
| Person / Time | |
|---|---|
| Site: | Satsop |
| Issue date: | 07/11/1980 |
| From: | Renberger D WASHINGTON PUBLIC POWER SUPPLY SYSTEM |
| To: | Spencer G NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| GO3-80-1635, NUDOCS 8007180329 | |
| Download: ML19320C958 (4) | |
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Washington Public Power Supply System A JOINT OPERATING AGENCY P o aos see sooo one was=inoro= w.,
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>=o=s ( soo l s7 s-sooo July 11,1980 G03-80-1635 Nuclear Regulatory Commission, Region V Suite 202, Walnut Creek Plaza 1990 N. California Boulevard Walnut Creek, California 94596 Attention:
Mr. G. S. Spencer Chief Reactor Construction and Engineering Support Branch
Subject:
WPPSS NUCLEAR PROJECTS 3 and 3 NRC INSPECTION OF WNP-3 AND WNP-5 DOCKET NUMBERS 50-508 AND 50-509
Reference:
- 1) Letter, G.S. Spencer to N.O. Strand, same subject date June 9, 1980.
- 2) Letter, D.F. Knuth to all AEC Licensees, " Criterion for Determining Enforcement Action and Categories of Noncompliance", dated December 13, 1974.
Dear Mr. Spencer:
This letter is in response to your letter of June 9,1980, which discussed tne results of the inspection conducted May 20-23, 1980 of activities authorized by Nuclear Regulatory Commission Construction Permit Numbers CPPR-154 and CPPR-155. The letter identified two items of noncompliance categorized in accordance with Reference 2 and re-quired the Supply System to provide a response to these items.
The specific Nuclear Regulatory Commission Findings, as stated in your letter, and the Supply System responses are provided in Attadnoent. I to this letter.
Should you have any questions to desire further information, please feel free to contact me directly.
Very truly yours, c./g $
f Arf D.L. Renberger, 7
Assistant Director, Technology Attachment bN 5
cc:
D. Smithpeter, BPA L d.',2%
l WNP-3/5 Files 80 07180 3M Q
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ATTACHMENT I NUCLEAR REGULATORY COMMISSION FINDING A 10 CFR 50, Appendix B, Criterion V, as implemented by Section 17.4.5 of the Quality Assurance Program documented in the approved PSAR deviation 18-WP, states, in part, that " Activities affecting quality...shall be accomplished in accordance with... instructions, procedures or drawings".
Specification No. 3240-4., titled " Piping and Piping Supports - WPPSS Quality Class I, II, and G" in Division 2, Section 2A, paragraph 6.04h states that "All pipe welds except socket welds and where otherwise stated on the contract drawings shall be full penetration welds."
Contrary to the above requirements, the inspector observed on May 20 and 22, 1980, that piping subassembly No. 3-3CCl2-0095A-1 had incomplete root pene-tration on the inside diameter of a pipe to elbow neld, specified to be a full penetration weld, in three areas for a total circumferential distance of approximately 2.5 inches to 3 inches and that piping subassembly No. 3-3CC24-0675B-8 had incomplete root penetration on the inside diameter of a pipe weld, specified to be a full penetration weld, for a total circumferential distance of approximately 12 inches. The above piping subassemblies are carbon steel and destined for service in the Unit 3 Component Cooling Water System and had been accepted by Ebasco receipt inspection.
This is an infraction.
NUCLEAR REGULATORY COMMISSION FINDING B 10 CFR 50, Appendix B, Criterion V, as implemented by Section 17.4.5 of the Quality Assurance Program documented in the approved PSAR deviation 18-WP, states, in part that " Activities affecting quality...shall be accomplished in accordance with... instructions, procedures or drawings."
Specification No. 3240-4, titled " Piping and Piping Supports - WPPSS Quality Class I, II and G" in Division 2, Section 2A, paragraph 6.01a states that "All fabrication covered by this specification shall be in accordance with ASME Section III" and further states in paragraph 6.0ld-fii that "The ends of pipe-to-pipe, pipe-to-fitting and pipe-to-valve joints shall be aligned as accurately as practical within the existing commercial codes and standards tolerance of pipe diameters, pipe wall thickness and out-of-roundness." The ASME B&PV Code, 1974 Edition, Summer 1976 Addenda, Subsection N0, Figure N04233-1 requires 1/32" maximum uniform mismatch around joints with concentric centerlines and a 3/32" maximum mismatch at any one point around the joint for pipe joints with offset centerlines.
Contrary to the above requirements, the inspector observed on May 20-23, 1980, that certain piping subassemblies stored at the Saginaw storage area contained weld joints with offset in excess of ASME B&PV Code requirements. The discre-pant piping subassemblies has been accepted by Ebasco receipt inspection. The findings are sunnarized on the next page.
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Attachment I Page 2 SUBASSEMBLY N0.
DISCREPANCY (1) 3-3CC24-04058-5 Inside diameter offset of approximately 5/32" for about 6" of circumferential distance of one weld (2) 3-3CC24-0205A-l Inside diameter offset of approximately 3/16" for about 3" of circumferential distance on pipe / elbow weld (3) 3-3CC24-0675B-4 Pipes at one weld joint were approxi-mately 5/32" offset in inside diameter due to misalionment for a circumferentia' distance of about 6".
(4) 3-3CC24-03-S'A-28 Inside diameter offset of approximately 5/32" due to misal1gnment of pipes to be joined for about 6" and 8" of circum-ferential distance on first and second welds respectively from elbow opening.
This is an infraction.
For both items of Noncompliance, the following actions apply.
CORRECTIVE STEPS WHICH HAVE BEEN TAKEN:
Nonconfoi aance Report number 11934 was prepared on May 22, 1980 to disposition the pipe spools which were identified by the NRC as exceeding offset limits or which exhibited incomplete weld penetration. The NCR disposition was to return the spools to the vendor.
The Supply System issued Stop Shipment Order number 04001 on June 20, 1980 which requires Supply System evaluation and approval of Associated Piping & Engineering Corporation's (AP&E) corrective action plan and the action taken to prevent re-currence prior to release of any further shipments.
The Supply System has established a hold point to perform 100f. visual receipt inspection of all accessable interior / exterior ASME Section III spool welds.
This receipt inspection will determine the acceptability of weld joint offset and weld penetration, and shall remain in effect until such time that sufficient inspection has been performed with acceptable results to obtain a satisfactory confidence level.
CORRECTIVE STEPS WHICH WILL BE TAKEN TO AVOID FURTHER VIOLATION:
AP&E will visually inspect all accessable welds on ASME Section III pipe spools now at the WNP-3/5 site.
Inspections will determine the acceptability of weld joint offset and weld penetration based on contract requirements. Unacceptable n-
a Attachment I Page 3-spools will be dispositioned to either be reworked at the site by AP&E utilizing approved procedures or be returned to AP&E's facility for appropriate action.
The Supply System will perform a sample receipt inspection on other prepurchased materials / components containing similar att'ributes. Sampling will remain in effect until such time that a sufficient sample size has been inspected with acceptable results to obtain a satisfactory confidence level.
DATE WHEN FULL COMPLIANCE WILL BE ACHIEVED:
Full compliance will be achieved upon receipt and approval of AP&E's corrective action plan and action taken to prevent recurrence.
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