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Technical Specification 6.8.1b states that … Technical Specification 6.8.1b states that, Written procedures shall be established, implemented, and maintained covering surveillance and test activities of equipment that affects nuclear safety and radioactive waste management equipment. Contrary to the above, from August 2012 through September 2013, Exelon took no action following receipt of ten lubricating oil analysis report results taken from two emergency diesel generator No. 2 sample locations which indicated silver content at 1.0 ppm, which exceeded procedural action levels. Specifically, Exelon maintenance procedure MA-AA-716-230-1001, Oil Analysis Interpretation Guideline, Section 3 governs safety system oil analyses and describes actions to be taken when equipment wear metals exceed specific thresholds, as obtained through monthly oil analysis. Section 3 of procedure MA-AA-716-230-1001 lists potential actions to be taken when oil analysis results indicate silver content above 0.3 and 0.7 ppm respectively. These actions include resampling immediately to verify abnormal results, performing confirmatory testing using more accurate methods if required, reviewing all vibration and thermography data immediately for adverse trends, and contacting the equipment manufacturer for additional assistance. Exelon identified this issue on October 21, 2013, during the performance of a 24-month lubricating oil system inspection on the emergency diesel generator No. 2 when silver metal shavings were found in the main lubricating oil filter housing and in the sump below cylinder #15. The inspectors determined that the failure to identify an out-of-specification lubricating oil sample result on numerous occasions was a performance deficiency that was within Exelons ability to foresee and correct. The inspectors determined that the issue adversely impacted the reliability of the safety-related emergency diesel generator in that the wrist pin bearing was degraded and had partially failed. The inspectors determined that the issue was of very low safety significance (Green) because it did not: affect design or qualification; represent a loss of system or function; exceed technical speciation allowed outage times; and involve external events. Exelon entered this issue into the corrective action program as IR 1575045.e corrective action program as IR 1575045.

Discovered date

23:59:59, 31 March 2015 +

Docket

05000219 +

Event date

23:59:59, 31 March 2015 +

5 +

Non-cited violation +

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Identified by

Licensee-identified +

Inspection report

IR 05000219/2015001 +

Inspector

P Kaufman +, T O'Hara +, B Bollinger +, Amar Patel +, Elise Burket +, Silas Kennedy +, Jeffrey Kulp +, Elizabeth Andrews +, Michael Orr +, Jigar Patel + and Nik Floyd +

Issue report

AR 01575045 +

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15:52:03, 30 May 2018 +

Person