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The licensee identified a NCV of 10 CFR Pa … The licensee identified a NCV of 10 CFR Part 50, Appendix B, Criterion V, Instructions, Procedures, and Drawings, for the failure to incorporate vendor torque specifications into applicable maintenance procedures for all four of the plants EDGs. On October 25, 2014, during a fast start test of the G01 EDG, a six-inch expansion joint coupling on the engines jacket water system began leaking upon start, and stopped leaking shortly after the EDG reached rated speed. The licensee found upon initial investigation that the coupling band, which secured the joint assembly together, was less than snug tight. The licensee identified this condition in AR 02002147 and noted that the facilitys maintenance procedures, RMP 9043 series procedures, did not contain a torque value for this and other similar couplings located on EDG components. On November 7, 2014, during a monthly run of the G04 EDG, the six-inch engine jacket water coupling began leaking in a similar fashion to that as the above described leak for the G01 EDG. The licensee identified this condition in AR 02005324 and AR 02005443. These ARs included an attachment, vendor technical information, which specified torque values for the couplings of concern. On November 17, 2014, the licensee initiated AR 02007284 which stated that the licensees system engineering had the vendor information with the torque values since December 2012, but had not initiated changes to the EDG maintenance procedures until the November 7, 2014 condition was discovered. Title 10 CFR Part 50, Appendix B, Criterion V, requires, in part, that activities affecting quality be prescribed and accomplished by procedures appropriate to the circumstance, and in accordance with those instructions and procedures. Additionally, instructions and procedures shall include appropriate quantitative or qualitative acceptance criteria for determining that important activities have been satisfactorily accomplished. Contrary to the above, from December 2012 to November 7, 2014, the licensees RMP 9043 series procedures did not contain final torque values for the flexible fittings used in the EDGs jacket water cooling and oil systems. The licensee entered this issue into the CAP as AR 02007284 and AR 02020080, and initiated procedure changes to incorporate the torque specifications for these fittings. Additionally, the licensee updated future WOs to perform torque checks on these fittings prior to the next EDG maintenance runs. The inspectors determined that this issue was of very low safety significance (Green) after reviewing IMC 0609, Significance Determination Process, Attachment 0609.04, Initial Characterization of Findings, dated July 1, 2012 and IMC 0609, Appendix A, The Significance Determination Process For Findings At-Power, dated July 1, 2012. The inspectors answered "NO" to all questions in Exhibit 2, Section A, Mitigating structures systems components (SSCs) and Functionality. Therefore, the finding screened as very low safety significance (Green).d as very low safety significance (Green).

Discovered date

23:59:59, 31 December 2014 +

Docket

05000266 + and 05000301 +

Event date

23:59:59, 31 December 2014 +

Finding integer

3 +

Finding type

Non-cited violation +

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Identified by

Licensee-identified +

Inspection Manual Chapter

NRC Inspection Manual 0609 + and NRC Inspection Manual 0609/Appendix A, The Significance Determination Process (SDP) for Findings At-Power +

Inspection report

IR 05000266/2014005 +

Inspector

Bruce Bartlett +, Jamnes Cameron +, D Oliver +, James Beavers +, Atif Shaikh +, John Rutkowski +, Kevin Barclay + and Valerie Myers +

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15:50:40, 30 May 2018 +

Person