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Technical Specification 3.0.4 requires, in … Technical Specification 3.0.4 requires, in part, that when a limiting condition for operation is not met, entry into a mode shall only be made when the associated actions permit continued operation in the mode for an unlimited period of time, or after performance of a risk assessment and establishment of risk management actions. In addition, Technical Specification 3.4.6.2 requires, in part, that while the plant is operating in Modes 1 through 4, unidentified reactor coolant system leakage shall be limited to 1.0 gallons per minute, and identified leakage shall be limited to 10.0 gallons per minute, or reduce to within limits within 4 hours, or be in Mode 3 within 6 hours and Mode 5 within the next 30 hours. Contrary to the above, the licensee failed to meet the requirements of Technical Specification 3.0.4, because Unit 2 entered Mode 4 on November 8, 2010, and Mode 3 on November 9, 2010, with unidentified leakage at approximately 2.0 gallons per minute, without reducing the leakage to within limits or transitioning to Mode 5 within the required timeframe; nor did they perform the required risk assessment or implement any risk management actions prior to making the mode changes. This violation was processed through significance determination process using Manual Chapter 0609, Appendix A, because the licensee had secured from using residual heat removal system in Mode 3. The finding was determined to be of very low safety significance because, assuming the worst case degradation, the finding would not have resulted in exceeding the 10 gallons per minute technical specification limit for reactor coolant system for identified leakage. The licensee entered this issue into their corrective action program as Condition Report 10-24488.tion program as Condition Report 10-24488. +

Discovered date

23:59:59, 30 September 2011 +

Docket

05000498 + and 05000499 +

Event date

23:59:59, 30 September 2011 +

Finding integer

4 +

Finding type

Non-cited violation +

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Hours

4.62963e-5 d (0.00111 hours, 6.613757e-6 weeks, 1.522e-6 months) +, 6.944444e-5 d (0.00167 hours, 9.920635e-6 weeks, 2.283e-6 months) + and 3.472222e-4 d (0.00833 hours, 4.960317e-5 weeks, 1.1415e-5 months) +

Identified by

Licensee-identified +

Inspection report

IR 05000004/1999044 +

Modification date"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.

15:43:01, 30 May 2018 +