05000285/FIN-2015001-03
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Finding | |
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| Title | Required In-Service Testing for Steam Generator Auxiliary Feedwater Inlet Valves |
| Description | The inspectors identified an unresolved item associated with required inservice testing (lSD for steam generator auxiliary feedwater (AFW) inlet valves. The licensee is updating a design analysis for these valves to establish a formal technical position with regard to the "active" safety functions that these valves serve. The inspectors will review the licensee's updated design analysis upon its completion to determine if the 1ST is being performed per the 1ST ASME OM Code. On December 22, 2014, the inspectors reviewed an operability determination following the licensee's discovery of a degraded condition related to a leak identified on AFW valve HCV-11 08A. The inspectors reviewed surveillance testing required by Technical Specification (TS) 3.9.3 which requires that the operability of HCV- 11 08A be confirmed in accordance with the licensee's 1ST program. The inspectors identified that these AFW valves had both open and close "active" safety functions per design basis document EA11-026, "CQE Valves w/Essential Accumulators". In addition, the valve is classified as a category "8" valve per their 1ST program. The licensee committed to ASME OM Code 1998 Edition w/1999 through 2000 addenda for their 1ST program. Applicable to this Code, an "active" safety function requires the valve to change position to accomplish its specific safety function. Category "8" valves with these "active" functions are required to be stroke time tested in the direction of valve repositioning. The inspectors discussed these requirements with the licensee and they subsequently identified that they were not performing ASME 1ST for HCV-1107A/8 and HCV-11 08AIB for the "active" close safety function of the valves. The licensee is performing a review of the "active" close safety function to determine whether the "active" safety function described in EA 11-026 is appropriate. The inspectors will review the licensee determination and assess whether the testing being performed on the steam generator AFW inlet valves meets the applicable ASME OM Code requirements. This issue will be tracked as unresolved item (URI)05000285/2015001-03. |
| Site: | Fort Calhoun  |
|---|---|
| Report | IR 05000285/2015001 Section 1R15 |
| Date counted | Mar 31, 2015 (2015Q1) |
| Type: | URI: |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.15 |
| Inspectors (proximate) | B Hagar G Miller I Anchondo L Carson M Baquera M Cummings P Elkmann P Hernandez S Schneidert Buchananb Hagar G Miller M Cummings P Elkmann S Hedger S Schneider |
| INPO aspect | |
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Finding - Fort Calhoun - IR 05000285/2015001 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Fort Calhoun) @ 2015Q1
Self-Identified List (Fort Calhoun)
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