Finding | |
|---|---|
| Title | ASME Section IX Weld Procedure Qualification |
| Description | The inspectors identified an unresolved item (URI) associated with the qualification of the weld procedure specification (WPS) used for replacement of a portion of nuclear service water piping. Description: While conducting buried piping inspections in support of license renewal, the licensee identified pitting on the exterior wall of a portion of the Unit 1 nuclear service water supply header (1-SW-103-30-157). The licensee chose to address this by replacing the section of pipe (WO 12274010-08). The licensees repair/replacement plan for this activity identified that the requirements of ASME Section III, 1986 Edition, Subsection ND were applicable for the repair. By reference (ND-4320), several ASME Section IX Subsection QW requirements also applied. First, QW-200.2(f) allowed the use of multiple Procedure Qualification Records (PQRs) to produce a single WPS, provided that each essential variable is addressed by at least one PQR. Second, QW-403.8 and QW-404.30 established the requirements for two essential variables (base metal thickness qualified and filler metal thickness qualified, respectively) and referred to QW-451, which established the limits for both. The inspectors are opening a URI to review whether the licensees use of PQRs 1, 5, 193A and 193B to qualify the base metal and filler metal thickness ranges identified in WPS 01-1-04 and WPS 01-3-04 in accordance with Code was appropriate, and if a performance deficiency exists. The licensee wrote NCR 2009571 to address this issue. The issue is being tracked as a URI: URI 05000325/2016001-01, ASME Section IX Weld Procedure Qualification. |
| Site: | Brunswick  |
|---|---|
| Report | IR 05000325/2016001 Section 1R08 |
| Date counted | Mar 31, 2016 (2016Q1) |
| Type: | URI: |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.08 |
| Inspectors (proximate) | B Collins G Hopper J Rivera M Catts M Schwieg W Loob Collinsd Jones G Hopper J Panfel M Catts M Schwieg W Pursley |
| INPO aspect | |
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Finding - Brunswick - IR 05000325/2016001 | |||||||||||||||||||||||||||||||||||
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Finding List (Brunswick) @ 2016Q1
Self-Identified List (Brunswick)
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